23565536 has 24 divisors (see below), whose sum is σ = 49124880. Its totient is φ = 11089408.

The previous prime is 23565533. The next prime is 23565557. The reversal of 23565536 is 63556532.

It is a junction number, because it is equal to n+sod(n) for n = 23565496 and 23565505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23565533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21116 + ... + 22203.

It is an arithmetic number, because the mean of its divisors is an integer number (2046870).

Almost surely, 2^23565536 is an apocalyptic number.

It is an amenable number.

23565536 is an abundant number, since it is smaller than the sum of its proper divisors (25559344).

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

23565536 is a wasteful number, since it uses less digits than its factorization.

23565536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43346 (or 43338 counting only the distinct ones).

The product of its digits is 81000, while the sum is 35.

The square root of 23565536 is about 4854.4346735743. The cubic root of 23565536 is about 286.6987332676.

The spelling of 23565536 in words is "twenty-three million, five hundred sixty-five thousand, five hundred thirty-six".