57492189 has 6 divisors (see below), whose sum is σ = 83044286. Its totient is φ = 38328120.

The previous prime is 57492173. The next prime is 57492199. The reversal of 57492189 is 98129475.

It can be written as a sum of positive squares in only one way, i.e., 34047225 + 23444964 = 5835^2 + 4842^2 .

It is not a de Polignac number, because 57492189 - 2⁴ = 57492173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57492199) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3194002 + ... + 3194019.

Almost surely, 2^57492189 is an apocalyptic number.

It is an amenable number.

57492189 is a deficient number, since it is larger than the sum of its proper divisors (25552097).

57492189 is a wasteful number, since it uses less digits than its factorization.

57492189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6388027 (or 6388024 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 57492189 is about 7582.3603844713. The cubic root of 57492189 is about 385.9546534110.

The spelling of 57492189 in words is "fifty-seven million, four hundred ninety-two thousand, one hundred eighty-nine".