57160989 has 6 divisors (see below), whose sum is σ = 82565886. Its totient is φ = 38107320.

The previous prime is 57160981. The next prime is 57161009. The reversal of 57160989 is 98906175.

57160989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 52925625 + 4235364 = 7275^2 + 2058^2 .

It is not a de Polignac number, because 57160989 - 2³ = 57160981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57160981) 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 5 ways as a sum of consecutive naturals, for example, 3175602 + ... + 3175619.

It is an arithmetic number, because the mean of its divisors is an integer number (13760981).

Almost surely, 2^57160989 is an apocalyptic number.

It is an amenable number.

57160989 is a deficient number, since it is larger than the sum of its proper divisors (25404897).

57160989 is a wasteful number, since it uses less digits than its factorization.

57160989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6351227 (or 6351224 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 57160989 is about 7560.4886746823. The cubic root of 57160989 is about 385.2120920561.

The spelling of 57160989 in words is "fifty-seven million, one hundred sixty thousand, nine hundred eighty-nine".