57556442 has 8 divisors (see below), whose sum is σ = 90088416. Its totient is φ = 27526972.

The previous prime is 57556439. The next prime is 57556483. The reversal of 57556442 is 24465575.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 57556396 and 57556405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 625568 + ... + 625659.

It is an arithmetic number, because the mean of its divisors is an integer number (11261052).

Almost surely, 2^57556442 is an apocalyptic number.

57556442 is a deficient number, since it is larger than the sum of its proper divisors (32531974).

57556442 is a wasteful number, since it uses less digits than its factorization.

57556442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251252.

The product of its digits is 168000, while the sum is 38.

The square root of 57556442 is about 7586.5962064684. The cubic root of 57556442 is about 386.0983802499.

The spelling of 57556442 in words is "fifty-seven million, five hundred fifty-six thousand, four hundred forty-two".