25658085652 has 72 divisors (see below), whose sum is σ = 49102284672. Its totient is φ = 11685619200.

The previous prime is 25658085623. The next prime is 25658085653.

25658085652 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 25658085652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25658085653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32602003 + ... + 32602789.

It is an arithmetic number, because the mean of its divisors is an integer number (681976176).

Almost surely, 2^25658085652 is an apocalyptic number.

It is an amenable number.

25658085652 is a deficient number, since it is larger than the sum of its proper divisors (23444199020).

25658085652 is a wasteful number, since it uses less digits than its factorization.

25658085652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057 (or 954 counting only the distinct ones).

The product of its (nonzero) digits is 5760000, while the sum is 52.

Subtracting from 25658085652 its product of nonzero digits (5760000), we obtain a palindrome (25652325652).

The spelling of 25658085652 in words is "twenty-five billion, six hundred fifty-eight million, eighty-five thousand, six hundred fifty-two".