57000137 has 2 divisors, whose sum is σ = 57000138. Its totient is φ = 57000136.

The previous prime is 57000131. The next prime is 57000179. The reversal of 57000137 is 73100075.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42719296 + 14280841 = 6536^2 + 3779^2 .

It is a cyclic number.

It is not a de Polignac number, because 57000137 - 2⁴ = 57000121 is a prime.

It is not a weakly prime, because it can be changed into another prime (57000131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28500068 + 28500069.

It is an arithmetic number, because the mean of its divisors is an integer number (28500069).

Almost surely, 2^57000137 is an apocalyptic number.

It is an amenable number.

57000137 is a deficient number, since it is larger than the sum of its proper divisors (1).

57000137 is an equidigital number, since it uses as much as digits as its factorization.

57000137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 735, while the sum is 23.

The square root of 57000137 is about 7549.8435083119. The cubic root of 57000137 is about 384.8504214576.

The spelling of 57000137 in words is "fifty-seven million, one hundred thirty-seven", and thus it is an aban number.