Hecho general: 53247 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 53247 is an uninteresting number.
Trivia: 53247 is a boring number.
Fecha histórica: October 13th is the day in 1881 that Revival of the Hebrew language as Eliezer Ben-Yehuda and friends agree to use Hebrew exclusively in their conversations.