Fatto generale: 1625 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 1625 is the number of circular permutations of a set with 8 elements with no element being mapped to its successor.
Trivia: 1625 is a boring number.
Data storica: June 12th is the day in 1963 that Civil rights leader Medgar Evers is murdered in front of his home in Jackson, Mississippi by Ku Klux Klan member Byron De La Beckwith.