57456557 has 8 divisors (see below), whose sum is σ = 59188800. Its totient is φ = 55742400.

The previous prime is 57456533. The next prime is 57456563. The reversal of 57456557 is 75565475.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57456557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57426557) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2069 + ... + 10917.

It is an arithmetic number, because the mean of its divisors is an integer number (7398600).

Almost surely, 2^57456557 is an apocalyptic number.

It is an amenable number.

57456557 is a deficient number, since it is larger than the sum of its proper divisors (1732243).

57456557 is a wasteful number, since it uses less digits than its factorization.

57456557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9043.

The product of its digits is 735000, while the sum is 44.

The square root of 57456557 is about 7580.0103561935. The cubic root of 57456557 is about 385.8749024134.

The spelling of 57456557 in words is "fifty-seven million, four hundred fifty-six thousand, five hundred fifty-seven".