57953557 has 4 divisors (see below), whose sum is σ = 58034880. Its totient is φ = 57872236.

The previous prime is 57953549. The next prime is 57953563. The reversal of 57953557 is 75535975.

57953557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57953557 - 2³ = 57953549 is a prime.

It is a super-2 number, since 2×57953557² = 6717229537904498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57951557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39583 + ... + 41020.

It is an arithmetic number, because the mean of its divisors is an integer number (14508720).

Almost surely, 2^57953557 is an apocalyptic number.

It is an amenable number.

57953557 is a deficient number, since it is larger than the sum of its proper divisors (81323).

57953557 is an equidigital number, since it uses as much as digits as its factorization.

57953557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81322.

The product of its digits is 826875, while the sum is 46.

The square root of 57953557 is about 7612.7233628971. The cubic root of 57953557 is about 386.9843174366.

The spelling of 57953557 in words is "fifty-seven million, nine hundred fifty-three thousand, five hundred fifty-seven".