57081593 has 2 divisors, whose sum is σ = 57081594. Its totient is φ = 57081592.

The previous prime is 57081559. The next prime is 57081613. The reversal of 57081593 is 39518075.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45738169 + 11343424 = 6763^2 + 3368^2 .

It is a cyclic number.

It is not a de Polignac number, because 57081593 - 2⁸ = 57081337 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57081503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28540796 + 28540797.

It is an arithmetic number, because the mean of its divisors is an integer number (28540797).

Almost surely, 2^57081593 is an apocalyptic number.

It is an amenable number.

57081593 is a deficient number, since it is larger than the sum of its proper divisors (1).

57081593 is an equidigital number, since it uses as much as digits as its factorization.

57081593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 57081593 is about 7555.2361313198. The cubic root of 57081593 is about 385.0336575961.

The spelling of 57081593 in words is "fifty-seven million, eighty-one thousand, five hundred ninety-three".