Hecho general: 51041 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 51041 is an uninteresting number.
Trivia: 51041 is a boring number.
Fecha histórica: September 29th is the day in 1979 that Pope John Paul II becomes the first pope to set foot on Irish soil with his pastoral visit to the Republic of Ireland.