56517323 has 2 divisors, whose sum is σ = 56517324. Its totient is φ = 56517322.

The previous prime is 56517319. The next prime is 56517353. The reversal of 56517323 is 32371565.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56517323 - 2² = 56517319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56517323.

It is not a weakly prime, because it can be changed into another prime (56517313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28258661 + 28258662.

It is an arithmetic number, because the mean of its divisors is an integer number (28258662).

Almost surely, 2^56517323 is an apocalyptic number.

56517323 is a deficient number, since it is larger than the sum of its proper divisors (1).

56517323 is an equidigital number, since it uses as much as digits as its factorization.

56517323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18900, while the sum is 32.

The square root of 56517323 is about 7517.8004096943. The cubic root of 56517323 is about 383.7607264983.

Adding to 56517323 its reverse (32371565), we get a palindrome (88888888).

The spelling of 56517323 in words is "fifty-six million, five hundred seventeen thousand, three hundred twenty-three".