Hecho general: 50403 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 50403 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 50403 is a boring number.
Fecha histórica: December 30th is the day in 1896 that Filipino patriot and reform advocate José Rizal is executed by a Spanish firing squad in Manila, Philippines.