57991411 has 2 divisors, whose sum is σ = 57991412. Its totient is φ = 57991410.

The previous prime is 57991397. The next prime is 57991447. The reversal of 57991411 is 11419975.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57991411 - 2⁹ = 57990899 is a prime.

It is equal to p_3449863 and since 57991411 and 3449863 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (57994411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28995705 + 28995706.

It is an arithmetic number, because the mean of its divisors is an integer number (28995706).

Almost surely, 2^57991411 is an apocalyptic number.

57991411 is a deficient number, since it is larger than the sum of its proper divisors (1).

57991411 is an equidigital number, since it uses as much as digits as its factorization.

57991411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 37.

The square root of 57991411 is about 7615.2091895102. The cubic root of 57991411 is about 387.0685556715.

The spelling of 57991411 in words is "fifty-seven million, nine hundred ninety-one thousand, four hundred eleven".