56365619 has 2 divisors, whose sum is σ = 56365620. Its totient is φ = 56365618.

The previous prime is 56365613. The next prime is 56365637. The reversal of 56365619 is 91656365.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56365619 is a prime.

It is a super-2 number, since 2×56365619² = 6354166010506322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56365613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28182809 + 28182810.

It is an arithmetic number, because the mean of its divisors is an integer number (28182810).

Almost surely, 2^56365619 is an apocalyptic number.

56365619 is a deficient number, since it is larger than the sum of its proper divisors (1).

56365619 is an equidigital number, since it uses as much as digits as its factorization.

56365619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145800, while the sum is 41.

The square root of 56365619 is about 7507.7039765830. The cubic root of 56365619 is about 383.4170548495.

The spelling of 56365619 in words is "fifty-six million, three hundred sixty-five thousand, six hundred nineteen".