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 an unremarkable number.
Data storica: June 12th is the day in 1987 that the Central African Republic's former Emperor Jean-Bédel Bokassa is sentenced to death for crimes he had committed during his 13-year rule.