Fait général: 5481 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 5481 is a boring number.
Culture générale: 5481 is an uninteresting number.
Date historique: January 2nd is the day in 1974 that President Richard Nixon signs a bill lowering the maximum U.S. speed limit to 55 MPH in order to conserve gasoline during an OPEC embargo.