56817023 has 2 divisors, whose sum is σ = 56817024. Its totient is φ = 56817022.

The previous prime is 56816993. The next prime is 56817041. The reversal of 56817023 is 32071865.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56817023 - 2⁶ = 56816959 is a prime.

It is a Sophie Germain prime.

It is equal to p_3384239 and since 56817023 and 3384239 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56817323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28408511 + 28408512.

It is an arithmetic number, because the mean of its divisors is an integer number (28408512).

Almost surely, 2^56817023 is an apocalyptic number.

56817023 is a deficient number, since it is larger than the sum of its proper divisors (1).

56817023 is an equidigital number, since it uses as much as digits as its factorization.

56817023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 56817023 is about 7537.7067467500. The cubic root of 56817023 is about 384.4378663164.

Adding to 56817023 its reverse (32071865), we get a palindrome (88888888).

The spelling of 56817023 in words is "fifty-six million, eight hundred seventeen thousand, twenty-three".