57155349 has 16 divisors (see below), whose sum is σ = 77306240. Its totient is φ = 37558080.

The previous prime is 57155327. The next prime is 57155369. The reversal of 57155349 is 94355175.

57155349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57155349 - 2⁸ = 57155093 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57155369) 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 15 ways as a sum of consecutive naturals, for example, 90264 + ... + 90894.

It is an arithmetic number, because the mean of its divisors is an integer number (4831640).

Almost surely, 2^57155349 is an apocalyptic number.

It is an amenable number.

57155349 is a deficient number, since it is larger than the sum of its proper divisors (20150891).

57155349 is a wasteful number, since it uses less digits than its factorization.

57155349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020.

The product of its digits is 94500, while the sum is 39.

The square root of 57155349 is about 7560.1156737182. The cubic root of 57155349 is about 385.1994221817.

The spelling of 57155349 in words is "fifty-seven million, one hundred fifty-five thousand, three hundred forty-nine".