23056565 has 16 divisors (see below), whose sum is σ = 31795200. Its totient is φ = 15722880.

The previous prime is 23056543. The next prime is 23056567. The reversal of 23056565 is 56565032.

It is not a de Polignac number, because 23056565 - 2²⁰ = 22007989 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23056567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4961 + ... + 8409.

It is an arithmetic number, because the mean of its divisors is an integer number (1987200).

Almost surely, 2^23056565 is an apocalyptic number.

It is an amenable number.

23056565 is a deficient number, since it is larger than the sum of its proper divisors (8738635).

23056565 is a wasteful number, since it uses less digits than its factorization.

23056565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3652.

The product of its (nonzero) digits is 27000, while the sum is 32.

The square root of 23056565 is about 4801.7252107966. The cubic root of 23056565 is about 284.6196423948.

The spelling of 23056565 in words is "twenty-three million, fifty-six thousand, five hundred sixty-five".