Fait général: 4425 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 4425 is the sum of the first five 5^{th} powers.
Culture générale: 4425 is an unremarkable number.
Date historique: February 11th is the day in 1990 that Nelson Mandela is released from Victor Verster Prison outside Cape Town, South Africa after 27 years as a political prisoner.