57189193 has 2 divisors, whose sum is σ = 57189194. Its totient is φ = 57189192.

The previous prime is 57189179. The next prime is 57189199. The reversal of 57189193 is 39198175.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45265984 + 11923209 = 6728^2 + 3453^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57189193 is a prime.

It is not a weakly prime, because it can be changed into another prime (57189199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28594596 + 28594597.

It is an arithmetic number, because the mean of its divisors is an integer number (28594597).

Almost surely, 2^57189193 is an apocalyptic number.

It is an amenable number.

57189193 is a deficient number, since it is larger than the sum of its proper divisors (1).

57189193 is an equidigital number, since it uses as much as digits as its factorization.

57189193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 43.

The square root of 57189193 is about 7562.3536680057. The cubic root of 57189193 is about 385.2754379127.

The spelling of 57189193 in words is "fifty-seven million, one hundred eighty-nine thousand, one hundred ninety-three".