57445057 has 16 divisors (see below), whose sum is σ = 62674560. Its totient is φ = 52445952.

The previous prime is 57445039. The next prime is 57445067. The reversal of 57445057 is 75054475.

It is not a de Polignac number, because 57445057 - 2¹⁹ = 56920769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57445067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92494 + ... + 93112.

It is an arithmetic number, because the mean of its divisors is an integer number (3917160).

Almost surely, 2^57445057 is an apocalyptic number.

It is an amenable number.

57445057 is a deficient number, since it is larger than the sum of its proper divisors (5229503).

57445057 is a wasteful number, since it uses less digits than its factorization.

57445057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792.

The product of its (nonzero) digits is 98000, while the sum is 37.

The square root of 57445057 is about 7579.2517440708. The cubic root of 57445057 is about 385.8491562514.

It can be divided in two parts, 5744 and 5057, that added together give a palindrome (10801).

The spelling of 57445057 in words is "fifty-seven million, four hundred forty-five thousand, fifty-seven".