57354391 has 2 divisors, whose sum is σ = 57354392. Its totient is φ = 57354390.

The previous prime is 57354361. The next prime is 57354497. The reversal of 57354391 is 19345375.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57354391 - 2⁷ = 57354263 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57354391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57354301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28677195 + 28677196.

It is an arithmetic number, because the mean of its divisors is an integer number (28677196).

Almost surely, 2^57354391 is an apocalyptic number.

57354391 is a deficient number, since it is larger than the sum of its proper divisors (1).

57354391 is an equidigital number, since it uses as much as digits as its factorization.

57354391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 37.

The square root of 57354391 is about 7573.2681848724. The cubic root of 57354391 is about 385.6460530751.

The spelling of 57354391 in words is "fifty-seven million, three hundred fifty-four thousand, three hundred ninety-one".