Fait général: 5557 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 5557 is an uninteresting number.
Culture générale: 5557 is a boring number.
Date historique: March 19th is the day in 1990 that the ethnic clashes of Târgu Mureş begin four days after the anniversary of the Revolutions of 1848 in the Habsburg areas.