25465608992 has 24 divisors (see below), whose sum is σ = 51864227100. Its totient is φ = 12293741824.

The previous prime is 25465608991. The next prime is 25465609003. The reversal of 25465608992 is 29980656452.

It can be written as a sum of positive squares in 2 ways, for example, as 24977905936 + 487703056 = 158044^2 + 22084^2 .

It is not an unprimeable number, because it can be changed into a prime (25465608991) 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, 13719767 + ... + 13721622.

Almost surely, 2^25465608992 is an apocalyptic number.

It is an amenable number.

25465608992 is an abundant number, since it is smaller than the sum of its proper divisors (26398618108).

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

25465608992 is a wasteful number, since it uses less digits than its factorization.

25465608992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27441428 (or 27441420 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 56.

It can be divided in two parts, 2546560 and 8992, that added together give a palindrome (2555552).

The spelling of 25465608992 in words is "twenty-five billion, four hundred sixty-five million, six hundred eight thousand, nine hundred ninety-two".