57113939 has 2 divisors, whose sum is σ = 57113940. Its totient is φ = 57113938.

The previous prime is 57113923. The next prime is 57113941. The reversal of 57113939 is 93931175.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57113939 - 2⁴ = 57113923 is a prime.

Together with 57113941, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57113909) 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, 28556969 + 28556970.

It is an arithmetic number, because the mean of its divisors is an integer number (28556970).

Almost surely, 2^57113939 is an apocalyptic number.

57113939 is a deficient number, since it is larger than the sum of its proper divisors (1).

57113939 is an equidigital number, since it uses as much as digits as its factorization.

57113939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25515, while the sum is 38.

The square root of 57113939 is about 7557.3764627680. The cubic root of 57113939 is about 385.1063719120.

The spelling of 57113939 in words is "fifty-seven million, one hundred thirteen thousand, nine hundred thirty-nine".