25055424660 has 48 divisors (see below), whose sum is σ = 80177360256. Its totient is φ = 5726954112.

The previous prime is 25055424637. The next prime is 25055424673. The reversal of 25055424660 is 6642455052.

It is a super-2 number, since 2×25055424660² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29827467 + ... + 29828306.

It is an arithmetic number, because the mean of its divisors is an integer number (1670361672).

Almost surely, 2^25055424660 is an apocalyptic number.

25055424660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25055424660 is an abundant number, since it is smaller than the sum of its proper divisors (55121935596).

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

25055424660 is a wasteful number, since it uses less digits than its factorization.

25055424660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59655792 (or 59655790 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 39.

The spelling of 25055424660 in words is "twenty-five billion, fifty-five million, four hundred twenty-four thousand, six hundred sixty".