57557049 has 16 divisors (see below), whose sum is σ = 86421504. Its totient is φ = 33757200.

The previous prime is 57557047. The next prime is 57557057. The reversal of 57557049 is 94075575.

It is not a de Polignac number, because 57557049 - 2¹ = 57557047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57557049.

It is not an unprimeable number, because it can be changed into a prime (57557047) 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, 27109 + ... + 29154.

It is an arithmetic number, because the mean of its divisors is an integer number (5401344).

Almost surely, 2^57557049 is an apocalyptic number.

It is an amenable number.

57557049 is a deficient number, since it is larger than the sum of its proper divisors (28864455).

57557049 is a wasteful number, since it uses less digits than its factorization.

57557049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56308.

The product of its (nonzero) digits is 220500, while the sum is 42.

The square root of 57557049 is about 7586.6362111281. The cubic root of 57557049 is about 386.0997375315.

The spelling of 57557049 in words is "fifty-seven million, five hundred fifty-seven thousand, forty-nine".