Hecho general: 15826 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 15826 is a boring number.
Trivia: 15826 is an uninteresting number.
Fecha histórica: April 30th is the day in 1513 that Edmund de la Pole, Yorkist pretender to the English throne, is executed on the orders of Henry VIII.