25052864 has 14 divisors (see below), whose sum is σ = 49714404. Its totient is φ = 12526400.

The previous prime is 25052861. The next prime is 25052893. The reversal of 25052864 is 46825052.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 25052864.

It is not an unprimeable number, because it can be changed into a prime (25052861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195662 + ... + 195789.

Almost surely, 2^25052864 is an apocalyptic number.

It is an amenable number.

25052864 is a deficient number, since it is larger than the sum of its proper divisors (24661540).

25052864 is an equidigital number, since it uses as much as digits as its factorization.

25052864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391463 (or 391453 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 25052864 is about 5005.2836083483. The cubic root of 25052864 is about 292.6077290861.

The spelling of 25052864 in words is "twenty-five million, fifty-two thousand, eight hundred sixty-four".