25566132 has 24 divisors (see below), whose sum is σ = 59736096. Its totient is φ = 8510368.

The previous prime is 25566119. The next prime is 25566157. The reversal of 25566132 is 23166552.

It is a self number, because there is not a number n which added to its sum of digits gives 25566132.

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, 16378 + ... + 17870.

It is an arithmetic number, because the mean of its divisors is an integer number (2489004).

Almost surely, 2^25566132 is an apocalyptic number.

It is an amenable number.

25566132 is an abundant number, since it is smaller than the sum of its proper divisors (34169964).

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

25566132 is a wasteful number, since it uses less digits than its factorization.

25566132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2927 (or 2925 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The square root of 25566132 is about 5056.2962729650. The cubic root of 25566132 is about 294.5924929726.

The spelling of 25566132 in words is "twenty-five million, five hundred sixty-six thousand, one hundred thirty-two".