Fatto generale: 19253 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 19253 is a boring number.
Trivia: 19253 is an unremarkable number.
Data storica: September 16th is the day in 1959 that the first successful photocopier, the Xerox 914, is introduced in a demonstration on live television from New York City.