23852561 has 4 divisors (see below), whose sum is σ = 23865072. Its totient is φ = 23840052.

The previous prime is 23852557. The next prime is 23852567. The reversal of 23852561 is 16525832.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23852561 - 2² = 23852557 is a prime.

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

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23852567) 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, 2735 + ... + 7428.

It is an arithmetic number, because the mean of its divisors is an integer number (5966268).

Almost surely, 2^23852561 is an apocalyptic number.

It is an amenable number.

23852561 is a deficient number, since it is larger than the sum of its proper divisors (12511).

23852561 is a wasteful number, since it uses less digits than its factorization.

23852561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12510.

The product of its digits is 14400, while the sum is 32.

The square root of 23852561 is about 4883.9083734239. The cubic root of 23852561 is about 287.8580230309.

The spelling of 23852561 in words is "twenty-three million, eight hundred fifty-two thousand, five hundred sixty-one".