It's about 85 times as heavy as a Brick.
In other words, the weight of a Brick is 0.012 times 551.15565550 pounds.(Standard, traditional face brick - 1,900 cu. cm (120 cu. in))
A standard, traditional face brick weighs an average of 6.40 pounds. The steeple of the Church of St. Martin in Landshut, Germany is said to be the tallest brick tower in the world at a height of 130.6 m (428.5 ft) and was constructed using an estimated 650,000 bricks.
It's about 100 times as heavy as a Chihuahua.
In other words, 551.15565550 pounds is 111 times the weight of a Chihuahua, and the weight of a Chihuahua is 0.00901 times that amount.(a.k.a. Chihuahue(o) (FCI standard)
The F&d&ration Cynologique Internationale (FCI) calls for Chihuahuas to weigh about 4.960 pounds. Relative to their body sizes, Chihuahuas have the largest brain size of any dog breed.
It's about 200 times as heavy as a Human Brain.
In other words, 551.15565550 pounds is 185 times the weight of a Human Brain, and the weight of a Human Brain is 0.00541 times that amount.(adult)
The average weight of an adult human brain is between 2.980 pounds. In humans and primates, sight and vision utilize about 30 different parts of the brain which together account for about half of the brain's size.
It's about 250 times as heavy as a liter of Water.
In other words, 551.15565550 pounds is 249.9930 times the weight of a liter of Water, and the weight of a liter of Water is 0.004000112 times that amount.(fresh; 4° C / 39.2° F; maximum density)
Contrary to popular belief, 1 liter (0.0.264172052358148 gal) of water at 4° C / 39.2° F (its point of maximum density) weighs 2.2046840 pounds rather than 1 kg exactly. The total volume of water on the planet Earth is about 13,590,000,000,000,000,000 (13.59 quntillion) L (3,590,000,000,000,000,000 gallons).
It's about one-three-hundredth as heavy as The Space Shuttle.
In other words, 551.15565550 pounds is 0.0035 times the weight of The Space Shuttle, and the weight of The Space Shuttle is 290 times that amount.(for Endeavour, a.k.a. OV-105, a.k.a. Orbiter Vehicle-105) (empty weight, excluding main engines)
When empty, the space shuttle Endeavour weighs 160,000 pounds. The shuttle's spacious cargo bay carried the Chandra X-ray Observatory into orbit in 1999 — a payload that weighed 44,000 pounds.
It's about 400 times as heavy as a Basketball.
In other words, 551.15565550 pounds is 400.840476730 times the weight of a Basketball, and the weight of a Basketball is 0.0024947580348 times that amount.(NBA official ball standards, Size 7)
A regulation NBA basketball, manufactured by Spalding, is known as a Size 7 ball and weighs 1.3750 pounds. These balls have 4,118 pebbles each with a diameter of 2.5 mm
It's about one-four-hundredth as heavy as a Blue Whale.
In other words, 551.15565550 pounds is 0.00239 times the weight of a Blue Whale, and the weight of a Blue Whale is 418 times that amount.(Balaenoptera musculus)
Blue whales weigh between 230,000 pounds. The largest mammal to have ever lived, blue whales feed almost exclusively on krill — tiny invertebrates weighing about 0.0022 pounds each.