56364239 has 2 divisors, whose sum is σ = 56364240. Its totient is φ = 56364238.

The previous prime is 56364157. The next prime is 56364277. The reversal of 56364239 is 93246365.

It is an a-pointer prime, because the next prime (56364277) can be obtained adding 56364239 to its sum of digits (38).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56364239 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56364289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28182119 + 28182120.

It is an arithmetic number, because the mean of its divisors is an integer number (28182120).

Almost surely, 2^56364239 is an apocalyptic number.

56364239 is a deficient number, since it is larger than the sum of its proper divisors (1).

56364239 is an equidigital number, since it uses as much as digits as its factorization.

56364239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 38.

The square root of 56364239 is about 7507.6120704256. The cubic root of 56364239 is about 383.4139257561.

The spelling of 56364239 in words is "fifty-six million, three hundred sixty-four thousand, two hundred thirty-nine".