25260861052 has 12 divisors (see below), whose sum is σ = 50521722160. Its totient is φ = 10826083296.

The previous prime is 25260861049. The next prime is 25260861053. The reversal of 25260861052 is 25016806252.

25260861052 is an admirable number.

It is a super-2 number, since 2×25260861052² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25260861053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451086777 + ... + 451086832.

Almost surely, 2^25260861052 is an apocalyptic number.

It is an amenable number.

25260861052 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25260861052 is a wasteful number, since it uses less digits than its factorization.

25260861052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902173620 (or 902173618 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 25260861052 in words is "twenty-five billion, two hundred sixty million, eight hundred sixty-one thousand, fifty-two".