57130657 has 2 divisors, whose sum is σ = 57130658. Its totient is φ = 57130656.

The previous prime is 57130651. The next prime is 57130673. The reversal of 57130657 is 75603175.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38390416 + 18740241 = 6196^2 + 4329^2 .

It is a cyclic number.

It is not a de Polignac number, because 57130657 - 2¹¹ = 57128609 is a prime.

It is not a weakly prime, because it can be changed into another prime (57130651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28565328 + 28565329.

It is an arithmetic number, because the mean of its divisors is an integer number (28565329).

Almost surely, 2^57130657 is an apocalyptic number.

It is an amenable number.

57130657 is a deficient number, since it is larger than the sum of its proper divisors (1).

57130657 is an equidigital number, since it uses as much as digits as its factorization.

57130657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22050, while the sum is 34.

The square root of 57130657 is about 7558.4824535088. The cubic root of 57130657 is about 385.1439434772.

The spelling of 57130657 in words is "fifty-seven million, one hundred thirty thousand, six hundred fifty-seven".