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")
There are 650 Members of Parliament in the U.K. The Commons Chamber in the Palace of Westminster only has seating for 427 members, so those arriving late to House debates must stay standing.
It's about nine-tenths the number of Inductees in the Rock and Roll Hall of Fame.
In other words, 650 is 0.8680 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 1.150 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 0.7720 times the count of Population of Vatican City, and the count of Population of Vatican City is 1.30 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 0.770 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 1.370 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 0.730 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)
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 0.530 times 650.(McDonald's sandwich; approximate figures)