23056553 has 4 divisors (see below), whose sum is σ = 24830148. Its totient is φ = 21282960.

The previous prime is 23056543. The next prime is 23056567. The reversal of 23056553 is 35565032.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13741849 + 9314704 = 3707^2 + 3052^2 .

It is a cyclic number.

It is not a de Polignac number, because 23056553 - 2⁶ = 23056489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23056543) 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, 886778 + ... + 886803.

It is an arithmetic number, because the mean of its divisors is an integer number (6207537).

Almost surely, 2^23056553 is an apocalyptic number.

It is an amenable number.

23056553 is a deficient number, since it is larger than the sum of its proper divisors (1773595).

23056553 is a wasteful number, since it uses less digits than its factorization.

23056553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773594.

The product of its (nonzero) digits is 13500, while the sum is 29.

The square root of 23056553 is about 4801.7239612456. The cubic root of 23056553 is about 284.6195930171.

The spelling of 23056553 in words is "twenty-three million, fifty-six thousand, five hundred fifty-three".