56616023 has 2 divisors, whose sum is σ = 56616024. Its totient is φ = 56616022.

The previous prime is 56615929. The next prime is 56616037. The reversal of 56616023 is 32061665.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56616023 - 2¹² = 56611927 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56616073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28308011 + 28308012.

It is an arithmetic number, because the mean of its divisors is an integer number (28308012).

Almost surely, 2^56616023 is an apocalyptic number.

56616023 is a deficient number, since it is larger than the sum of its proper divisors (1).

56616023 is an equidigital number, since it uses as much as digits as its factorization.

56616023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 56616023 is about 7524.3619663065. The cubic root of 56616023 is about 383.9839922978.

Adding to 56616023 its reverse (32061665), we get a palindrome (88677688).

The spelling of 56616023 in words is "fifty-six million, six hundred sixteen thousand, twenty-three".