23557956 has 24 divisors (see below), whose sum is σ = 55871424. Its totient is φ = 7723680.

The previous prime is 23557949. The next prime is 23557969. The reversal of 23557956 is 65975532.

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, 15360 + ... + 16823.

It is an arithmetic number, because the mean of its divisors is an integer number (2327976).

Almost surely, 2^23557956 is an apocalyptic number.

It is an amenable number.

23557956 is an abundant number, since it is smaller than the sum of its proper divisors (32313468).

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

23557956 is a wasteful number, since it uses less digits than its factorization.

23557956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32251 (or 32249 counting only the distinct ones).

The product of its digits is 283500, while the sum is 42.

The square root of 23557956 is about 4853.6538813558. The cubic root of 23557956 is about 286.6679904993.

The spelling of 23557956 in words is "twenty-three million, five hundred fifty-seven thousand, nine hundred fifty-six".