It's about the number of Members of Parliament (The U.K.).
(a.k.a. MPs) (2016 figures) (formally "Members of the House of Commons of the Parliament of the United Kingdom of Great Britain and Northern Ireland")
It's about nine-tenths the number of Inductees in the Rock and Roll Hall of Fame.
In other words, 650 is 0.868 times the count of Inductees in the Rock and Roll Hall of Fame, and the count of Inductees in the Rock and Roll Hall of Fame is 1.15 times that amount.(November, 2015 figures) (including individuals and groups)
It's about four-fifths the number of Kernels on an Ear of Corn.
In other words, the count of Kernels on an Ear of Corn is 1 times 650.(Corn, a.k.a. Maize; Kernel a.k.a. Seed) (average) (for Dent Corn, a.k.a. field corn)
It's about three-fourths the number of Population of Vatican City.
In other words, 650 is 0.772 times the count of Population of Vatican City, and the count of Population of Vatican City is 1.3 times that amount.(a.k.a. Vatican City State, a.k.a. Stato della Città del Vaticano, a.k.a. Status Civitatis Vaticanae) (Rome, Italy) (2014 estimates; permanent residents only)
It's about one-and-three-tenths times the number of Stores in the Mall of America.
In other words, the count of Stores in the Mall of America is 0.77 times 650.(a.k.a. MOA, a.k.a. MoA, a.k.a. Megamall) (Bloomington, Minnesota) (2015 figures) (approximate)
It's about one-and-two-fifths times the number of Olympic Gold Medals Won by the Soviet Union.
In other words, 650 is 1.37 times the count of Olympic Gold Medals Won by the Soviet Union, and the count of Olympic Gold Medals Won by the Soviet Union is 0.73 times that amount.(a.k.a. Union of Soviet Socialist Republics, a.k.a. USSR, a.k.a. Сою́з Сове́тских Социалисти́ческих Респу́блик, a.k.a. CCCP) (a.k.a. Olympic Games, a.k.a. Jeux olympiques) (Summer and Winter Games grand totals; excluding Russian Federation Medals) (1952 thru 1988 figures)
During its 19 appearances in the Summer and Winter Olympic Games, the Soviet Union was awarded 473 gold medals. The Union holds the as-yet-unbroken record for gold medals in gymnastics, with 72.
It's about one-and-nine-tenths times the number of Sesame Seeds on a Big Mac bun.
In other words, the count of Sesame Seeds on a Big Mac bun is 0.53 times 650.(McDonald's sandwich; approximate figures)