Fait général: 63509 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 63509 is an unremarkable number.
Culture générale: 63509 is an uninteresting number.
Date historique: November 17th is the day in 1953 that the remaining human inhabitants of the Blasket Islands, Kerry, Ireland are evacuated to the mainland.