It's about the number of Seats in The Colosseum.
(a.k.a. The Coliseum, a.k.a. Flavian Amphitheatre, a.k.a. Amphitheatrum Flavium, a.k.a. Anfiteatro Flavio or Colosseo) (Rome) (estimated)
Built between 70 and 80 AD, The Colosseum was a central attraction of Rome, capable of seating 50,000 spectators for various events including plays, war reenactments, and gladiatorial matches. The structure was estimated to require 100,000 cu. m of stone to construct. It remains the largest amphitheater in the world.
It's about the number of Seats in New Yankee Stadium.
In other words, the count of Seats in New Yankee Stadium is 1.0057 times 50,000.(2014 figures for 2009 Stadium; seating figures only) (a.k.a. Yankee Stadium, a.k.a. The Stadium, a.k.a. The House that George Built) (South Bronx, New York City, New York)
New Yankee Stadium has a seating capacity of 50,287. The Stadium was built between 2006 and 2009 out of 11,000 pieces of Indiana limestone.
It's about one-and-one-third times the number of Seats in Fenway Park.
In other words, 50,000 is 1.3488 times the count of Seats in Fenway Park, and the count of Seats in Fenway Park is 0.7414 times that amount.(2013 figures; daytime capacity) (a.k.a. The Cathedral of Boston) (Boston, Massachusetts)
Fenway Park, the home of the Boston Red Sox baseball team, can accommodate 37,071 spectators when configured for daytime seating. Fenway Park holds the record for most consecutive sellout games, with a streak of 794 sellouts that ended in 2013. This figure is a dramatic turnaround from the attendance in 1965, which was at times as low as just 500 people.
It's about one-and-two-fifths times the number of McDonald's Locations in the World.
In other words, the count of McDonald's Locations in the World is 0.71 times 50,000.(2015 figures) (approximate)
Operating in 119 countries, there are currently 36,000 McDonald's locations worldwide. From 1955 thru 1993, many McDonald's locations advertised the number in billions of hamburgers sold on their external signs, but abandoned theses updates after the figure passed 100 billion.
It's about three-fifths the number of Seats in Lambeau Field.
In other words, 50,000 is 0.61931 times the count of Seats in Lambeau Field, and the count of Seats in Lambeau Field is 1.6147 times that amount.(2014 figures) (a.k.a. City Stadium, a.k.a. New City Stadium, a.k.a. Titletown USA, a.k.a. The Frozen Tundra, a.k.a. The Shrine of Pro Football) (Green Bay, Wisconsin)
Lambeau Field, home of the Green Bay Packers NFL team, can accommodate 80,735 spectators. With 58 years of occupancy by the Packers, Lambeau Field holds the record as the longest consecutive home of any NFL team.
It's about five-and-a-half times the number of Written Characters in the Chinese Language.
In other words, 50,000 is 5.346 times the count of Written Characters in the Chinese Language, and the count of Written Characters in the Chinese Language is 0.1871 times that amount.(zhōngwén, 中文) (Hànzì, 汉字/漢字; Shuowen Jiezi count; distinct characters)
According to the Han Dynasty dictionary, Shuowen Jiezi (說文解字), there are 9,353 distinct Han characters used to depict the Chinese language. Fluency in written Chinese requires mastery of 4,000 - 5,000 of these characters.
It's about six times the number of Blue Whales in the World.
In other words, 50,000 is 5.9 times the count of Blue Whales in the World, and the count of Blue Whales in the World is 0.17 times that amount.(Balaenoptera musculus) (2002 estimates)
The worldwide population of blue whales (as of 2002) is estimated to be between 5,000 and 12,000. An estimated 378,200 blue whales were killed during the height of whaling in the late nineteenth and early twentieth centures