Hecho matemático: 25447 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 25447 is an uninteresting number.
Fecha histórica: September 1st is the day in 1836 that Narcissa Whitman, one of the first English-speaking white women to settle west of the Rocky Mountains, arrives at Walla Walla, Washington.