25630880 has 48 divisors (see below), whose sum is σ = 66062304. Its totient is φ = 9319680.

The previous prime is 25630877. The next prime is 25630921. The reversal of 25630880 is 8803652.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5522 + ... + 9041.

It is an arithmetic number, because the mean of its divisors is an integer number (1376298).

Almost surely, 2^25630880 is an apocalyptic number.

25630880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25630880 is an abundant number, since it is smaller than the sum of its proper divisors (40431424).

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

25630880 is a wasteful number, since it uses less digits than its factorization.

25630880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14589 (or 14581 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 25630880 is about 5062.6949345186. The cubic root of 25630880 is about 294.8409752883.

The spelling of 25630880 in words is "twenty-five million, six hundred thirty thousand, eight hundred eighty".