57557222 has 4 divisors (see below), whose sum is σ = 86335836. Its totient is φ = 28778610.

The previous prime is 57557209. The next prime is 57557231. The reversal of 57557222 is 22275575.

57557222 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.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 14389304 + ... + 14389307.

It is an arithmetic number, because the mean of its divisors is an integer number (21583959).

Almost surely, 2^57557222 is an apocalyptic number.

57557222 is a deficient number, since it is larger than the sum of its proper divisors (28778614).

57557222 is a wasteful number, since it uses less digits than its factorization.

57557222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28778613.

The product of its digits is 49000, while the sum is 35.

The square root of 57557222 is about 7586.6476127470. The cubic root of 57557222 is about 386.1001243661.

The spelling of 57557222 in words is "fifty-seven million, five hundred fifty-seven thousand, two hundred twenty-two".