56077139 has 2 divisors, whose sum is σ = 56077140. Its totient is φ = 56077138.

The previous prime is 56077111. The next prime is 56077159. The reversal of 56077139 is 93177065.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56077139 - 2⁸ = 56076883 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56077159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28038569 + 28038570.

It is an arithmetic number, because the mean of its divisors is an integer number (28038570).

Almost surely, 2^56077139 is an apocalyptic number.

56077139 is a deficient number, since it is larger than the sum of its proper divisors (1).

56077139 is an equidigital number, since it uses as much as digits as its factorization.

56077139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39690, while the sum is 38.

The square root of 56077139 is about 7488.4670660957. The cubic root of 56077139 is about 382.7618245257.

The spelling of 56077139 in words is "fifty-six million, seventy-seven thousand, one hundred thirty-nine".