25730868 has 36 divisors (see below), whose sum is σ = 62211968. Its totient is φ = 8268720.

The previous prime is 25730849. The next prime is 25730893. The reversal of 25730868 is 86803752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97705 + ... + 97967.

Almost surely, 2^25730868 is an apocalyptic number.

It is an amenable number.

25730868 is an abundant number, since it is smaller than the sum of its proper divisors (36481100).

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

25730868 is a wasteful number, since it uses less digits than its factorization.

25730868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 25730868 is about 5072.5603002823. The cubic root of 25730868 is about 295.2238767858.

It can be divided in two parts, 257 and 30868, that added together give a triangular number (31125 = T₂₄₉).

The spelling of 25730868 in words is "twenty-five million, seven hundred thirty thousand, eight hundred sixty-eight".