25432660 has 24 divisors (see below), whose sum is σ = 58264416. Its totient is φ = 9248160.

The previous prime is 25432619. The next prime is 25432699. The reversal of 25432660 is 6623452.

It is a happy number.

It is a congruent number.

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, 57582 + ... + 58021.

It is an arithmetic number, because the mean of its divisors is an integer number (2427684).

Almost surely, 2^25432660 is an apocalyptic number.

25432660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25432660 is an abundant number, since it is smaller than the sum of its proper divisors (32831756).

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

25432660 is a wasteful number, since it uses less digits than its factorization.

25432660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115623 (or 115621 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 25432660 is about 5043.0804078460. The cubic root of 25432660 is about 294.0789428128.

The spelling of 25432660 in words is "twenty-five million, four hundred thirty-two thousand, six hundred sixty".