56144239 has 2 divisors, whose sum is σ = 56144240. Its totient is φ = 56144238.

The previous prime is 56144213. The next prime is 56144269. The reversal of 56144239 is 93244165.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56144239 - 2²⁵ = 22589807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56144269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28072119 + 28072120.

It is an arithmetic number, because the mean of its divisors is an integer number (28072120).

Almost surely, 2^56144239 is an apocalyptic number.

56144239 is a deficient number, since it is larger than the sum of its proper divisors (1).

56144239 is an equidigital number, since it uses as much as digits as its factorization.

56144239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 34.

The square root of 56144239 is about 7492.9459493580. The cubic root of 56144239 is about 382.9144302741.

The spelling of 56144239 in words is "fifty-six million, one hundred forty-four thousand, two hundred thirty-nine".