25286868252 has 24 divisors (see below), whose sum is σ = 65558547600. Its totient is φ = 8428956048.

The previous prime is 25286868247. The next prime is 25286868287.

25286868252 is a `hidden beast` number, since 2 + 528 + 6 + 8 + 68 + 2 + 52 = 666.

25286868252 is nontrivially palindromic in base 10.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117068727 + ... + 117068942.

It is an arithmetic number, because the mean of its divisors is an integer number (2731606150).

Almost surely, 2^25286868252 is an apocalyptic number.

It is an amenable number.

25286868252 is an abundant number, since it is smaller than the sum of its proper divisors (40271679348).

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

25286868252 is a wasteful number, since it uses less digits than its factorization.

25286868252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234137682 (or 234137674 counting only the distinct ones).

The product of its digits is 7372800, while the sum is 54.

The spelling of 25286868252 in words is "twenty-five billion, two hundred eighty-six million, eight hundred sixty-eight thousand, two hundred fifty-two".