57042173 has 2 divisors, whose sum is σ = 57042174. Its totient is φ = 57042172.

The previous prime is 57042169. The next prime is 57042211. The reversal of 57042173 is 37124075.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41964484 + 15077689 = 6478^2 + 3883^2 .

It is a cyclic number.

It is not a de Polignac number, because 57042173 - 2² = 57042169 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57042143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28521086 + 28521087.

It is an arithmetic number, because the mean of its divisors is an integer number (28521087).

Almost surely, 2^57042173 is an apocalyptic number.

It is an amenable number.

57042173 is a deficient number, since it is larger than the sum of its proper divisors (1).

57042173 is an equidigital number, since it uses as much as digits as its factorization.

57042173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 57042173 is about 7552.6268940018. The cubic root of 57042173 is about 384.9450036696.

The spelling of 57042173 in words is "fifty-seven million, forty-two thousand, one hundred seventy-three".