25531456 has 28 divisors (see below), whose sum is σ = 50848768. Its totient is φ = 12719232.

The previous prime is 25531453. The next prime is 25531523. The reversal of 25531456 is 65413552.

It is not an unprimeable number, because it can be changed into a prime (25531453) 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, 22945 + ... + 24031.

Almost surely, 2^25531456 is an apocalyptic number.

It is an amenable number.

25531456 is a deficient number, since it is larger than the sum of its proper divisors (25317312).

25531456 is a wasteful number, since it uses less digits than its factorization.

25531456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466 (or 1456 counting only the distinct ones).

The product of its digits is 18000, while the sum is 31.

The square root of 25531456 is about 5052.8661173635. The cubic root of 25531456 is about 294.4592449293.

The spelling of 25531456 in words is "twenty-five million, five hundred thirty-one thousand, four hundred fifty-six".