57275189 has 4 divisors (see below), whose sum is σ = 57566124. Its totient is φ = 56984256.

The previous prime is 57275173. The next prime is 57275191. The reversal of 57275189 is 98157275.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32604100 + 24671089 = 5710^2 + 4967^2 .

It is a cyclic number.

It is not a de Polignac number, because 57275189 - 2⁴ = 57275173 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57275389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145172 + ... + 145565.

It is an arithmetic number, because the mean of its divisors is an integer number (14391531).

Almost surely, 2^57275189 is an apocalyptic number.

It is an amenable number.

57275189 is a deficient number, since it is larger than the sum of its proper divisors (290935).

57275189 is a wasteful number, since it uses less digits than its factorization.

57275189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290934.

The product of its digits is 176400, while the sum is 44.

The square root of 57275189 is about 7568.0373281320. The cubic root of 57275189 is about 385.4684554604.

The spelling of 57275189 in words is "fifty-seven million, two hundred seventy-five thousand, one hundred eighty-nine".