25715264 has 28 divisors (see below), whose sum is σ = 51200304. Its totient is φ = 12814464.

The previous prime is 25715243. The next prime is 25715267. The reversal of 25715264 is 46251752.

It is a super-2 number, since 2×25715264² = 1322549605179392, which contains 22 as substring.

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 25715264.

It is not an unprimeable number, because it can be changed into a prime (25715267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27899 + ... + 28805.

Almost surely, 2^25715264 is an apocalyptic number.

It is an amenable number.

25715264 is a deficient number, since it is larger than the sum of its proper divisors (25485040).

25715264 is an equidigital number, since it uses as much as digits as its factorization.

25715264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362 (or 1352 counting only the distinct ones).

The product of its digits is 16800, while the sum is 32.

The square root of 25715264 is about 5071.0219877259. The cubic root of 25715264 is about 295.1641870661.

The spelling of 25715264 in words is "twenty-five million, seven hundred fifteen thousand, two hundred sixty-four".