425515025550 has 24 divisors (see below), whose sum is σ = 1055277263736. Its totient is φ = 113470673440.

The previous prime is 425515025531. The next prime is 425515025561. The reversal of 425515025550 is 55520515524.

It is a junction number, because it is equal to n+sod(n) for n = 425515025499 and 425515025508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1418383269 + ... + 1418383568.

It is an arithmetic number, because the mean of its divisors is an integer number (43969885989).

Almost surely, 2^425515025550 is an apocalyptic number.

425515025550 is an abundant number, since it is smaller than the sum of its proper divisors (629762238186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425515025550 is a wasteful number, since it uses less digits than its factorization.

425515025550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2836766852 (or 2836766847 counting only the distinct ones).

The product of its (nonzero) digits is 250000, while the sum is 39.

The spelling of 425515025550 in words is "four hundred twenty-five billion, five hundred fifteen million, twenty-five thousand, five hundred fifty".