25716256 has 24 divisors (see below), whose sum is σ = 50745744. Its totient is φ = 12828480.

The previous prime is 25716241. The next prime is 25716259. The reversal of 25716256 is 65261752.

It is a super-2 number, since 2×25716256² = 1322651645315072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25716259) 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, 21531 + ... + 22693.

It is an arithmetic number, because the mean of its divisors is an integer number (2114406).

Almost surely, 2^25716256 is an apocalyptic number.

It is an amenable number.

25716256 is a deficient number, since it is larger than the sum of its proper divisors (25029488).

25716256 is a wasteful number, since it uses less digits than its factorization.

25716256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864 (or 1856 counting only the distinct ones).

The product of its digits is 25200, while the sum is 34.

The square root of 25716256 is about 5071.1197974412. The cubic root of 25716256 is about 295.1679824657.

The spelling of 25716256 in words is "twenty-five million, seven hundred sixteen thousand, two hundred fifty-six".