57190591 has 2 divisors, whose sum is σ = 57190592. Its totient is φ = 57190590.

The previous prime is 57190583. The next prime is 57190603. The reversal of 57190591 is 19509175.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57190591 - 2³ = 57190583 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57190591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57190541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28595295 + 28595296.

It is an arithmetic number, because the mean of its divisors is an integer number (28595296).

Almost surely, 2^57190591 is an apocalyptic number.

57190591 is a deficient number, since it is larger than the sum of its proper divisors (1).

57190591 is an equidigital number, since it uses as much as digits as its factorization.

57190591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14175, while the sum is 37.

The square root of 57190591 is about 7562.4460989815. The cubic root of 57190591 is about 385.2785772627.

The spelling of 57190591 in words is "fifty-seven million, one hundred ninety thousand, five hundred ninety-one".