57544457 has 4 divisors (see below), whose sum is σ = 57565200. Its totient is φ = 57523716.

The previous prime is 57544453. The next prime is 57544519. The reversal of 57544457 is 75444575.

57544457 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 57544457 - 2² = 57544453 is a prime.

It is a super-2 number, since 2×57544457² = 6622729062849698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57544451) 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, 5423 + ... + 12020.

It is an arithmetic number, because the mean of its divisors is an integer number (14391300).

Almost surely, 2^57544457 is an apocalyptic number.

It is an amenable number.

57544457 is a deficient number, since it is larger than the sum of its proper divisors (20743).

57544457 is a wasteful number, since it uses less digits than its factorization.

57544457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20742.

The product of its digits is 392000, while the sum is 41.

The square root of 57544457 is about 7585.8062854254. The cubic root of 57544457 is about 386.0715792516.

The spelling of 57544457 in words is "fifty-seven million, five hundred forty-four thousand, four hundred fifty-seven".