57655149 has 16 divisors (see below), whose sum is σ = 78624000. Its totient is φ = 37567296.

The previous prime is 57655111. The next prime is 57655159. The reversal of 57655149 is 94155675.

It is not a de Polignac number, because 57655149 - 2¹⁶ = 57589613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57655149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57655159) 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, 54972 + ... + 56010.

It is an arithmetic number, because the mean of its divisors is an integer number (4914000).

Almost surely, 2^57655149 is an apocalyptic number.

It is an amenable number.

57655149 is a deficient number, since it is larger than the sum of its proper divisors (20968851).

57655149 is a wasteful number, since it uses less digits than its factorization.

57655149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444.

The product of its digits is 189000, while the sum is 42.

The square root of 57655149 is about 7593.0987745452. The cubic root of 57655149 is about 386.3189686333.

The spelling of 57655149 in words is "fifty-seven million, six hundred fifty-five thousand, one hundred forty-nine".