23500565 has 8 divisors (see below), whose sum is σ = 30764448. Its totient is φ = 17091280.

The previous prime is 23500541. The next prime is 23500577. The reversal of 23500565 is 56500532.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23500565 - 2⁶ = 23500501 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213587 + ... + 213696.

It is an arithmetic number, because the mean of its divisors is an integer number (3845556).

Almost surely, 2^23500565 is an apocalyptic number.

It is an amenable number.

23500565 is a deficient number, since it is larger than the sum of its proper divisors (7263883).

23500565 is a wasteful number, since it uses less digits than its factorization.

23500565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427299.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 23500565 is about 4847.7381323665. The cubic root of 23500565 is about 286.4350113053.

The spelling of 23500565 in words is "twenty-three million, five hundred thousand, five hundred sixty-five".