25651488 has 24 divisors (see below), whose sum is σ = 67335408. Its totient is φ = 8550464.

The previous prime is 25651459. The next prime is 25651513. The reversal of 25651488 is 88415652.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×25651488² = 1315997673228288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133506 + ... + 133697.

It is an arithmetic number, because the mean of its divisors is an integer number (2805642).

Almost surely, 2^25651488 is an apocalyptic number.

It is an amenable number.

25651488 is an abundant number, since it is smaller than the sum of its proper divisors (41683920).

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

25651488 is a wasteful number, since it uses less digits than its factorization.

25651488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267216 (or 267208 counting only the distinct ones).

The product of its digits is 76800, while the sum is 39.

The square root of 25651488 is about 5064.7298052315. The cubic root of 25651488 is about 294.9199744629.

The spelling of 25651488 in words is "twenty-five million, six hundred fifty-one thousand, four hundred eighty-eight".