57133939 has 2 divisors, whose sum is σ = 57133940. Its totient is φ = 57133938.

The previous prime is 57133907. The next prime is 57134009. The reversal of 57133939 is 93933175.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57133939 - 2⁵ = 57133907 is a prime.

It is not a weakly prime, because it can be changed into another prime (57133339) 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, 28566969 + 28566970.

It is an arithmetic number, because the mean of its divisors is an integer number (28566970).

Almost surely, 2^57133939 is an apocalyptic number.

57133939 is a deficient number, since it is larger than the sum of its proper divisors (1).

57133939 is an equidigital number, since it uses as much as digits as its factorization.

57133939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 76545, while the sum is 40.

The square root of 57133939 is about 7558.6995574636. The cubic root of 57133939 is about 385.1513184914.

The spelling of 57133939 in words is "fifty-seven million, one hundred thirty-three thousand, nine hundred thirty-nine".