57391079 has 2 divisors, whose sum is σ = 57391080. Its totient is φ = 57391078.

The previous prime is 57391069. The next prime is 57391091. The reversal of 57391079 is 97019375.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57391079 - 2²⁴ = 40613863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57391069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28695539 + 28695540.

It is an arithmetic number, because the mean of its divisors is an integer number (28695540).

Almost surely, 2^57391079 is an apocalyptic number.

57391079 is a deficient number, since it is larger than the sum of its proper divisors (1).

57391079 is an equidigital number, since it uses as much as digits as its factorization.

57391079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 59535, while the sum is 41.

The square root of 57391079 is about 7575.6900015774. The cubic root of 57391079 is about 385.7282645466.

The spelling of 57391079 in words is "fifty-seven million, three hundred ninety-one thousand, seventy-nine".