57541591 has 4 divisors (see below), whose sum is σ = 57696232. Its totient is φ = 57386952.

The previous prime is 57541571. The next prime is 57541609. The reversal of 57541591 is 19514575.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57541591 - 2¹⁵ = 57508823 is a prime.

It is a super-2 number, since 2×57541591² = 6622069389622562, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57541591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57541511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76761 + ... + 77506.

It is an arithmetic number, because the mean of its divisors is an integer number (14424058).

Almost surely, 2^57541591 is an apocalyptic number.

57541591 is a deficient number, since it is larger than the sum of its proper divisors (154641).

57541591 is a wasteful number, since it uses less digits than its factorization.

57541591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154640.

The product of its digits is 31500, while the sum is 37.

The square root of 57541591 is about 7585.6173776430. The cubic root of 57541591 is about 386.0651697173.

The spelling of 57541591 in words is "fifty-seven million, five hundred forty-one thousand, five hundred ninety-one".