25673988 has 12 divisors (see below), whose sum is σ = 59906000. Its totient is φ = 8557992.

The previous prime is 25673953. The next prime is 25673993. The reversal of 25673988 is 88937652.

It is a tau number, because it is divible by the number of its divisors (12).

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, 1069738 + ... + 1069761.

Almost surely, 2^25673988 is an apocalyptic number.

It is an amenable number.

25673988 is an abundant number, since it is smaller than the sum of its proper divisors (34232012).

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

25673988 is a wasteful number, since it uses less digits than its factorization.

25673988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2139506 (or 2139504 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The square root of 25673988 is about 5066.9505622218. The cubic root of 25673988 is about 295.0061781719.

It can be divided in two parts, 2567 and 3988, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 25673988 in words is "twenty-five million, six hundred seventy-three thousand, nine hundred eighty-eight".