Fatto generale: 9925 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 9925 is a boring number.
Trivia: 9925 is an unremarkable number.
Data storica: March 4th is the day in 1848 that Carlo Alberto di Savoia signs the Statuto Albertino that will later represent the first constitution of the Regno d'Italia.