57032133657581 has 2 divisors, whose sum is σ = 57032133657582. Its totient is φ = 57032133657580.

The previous prime is 57032133657529. The next prime is 57032133657613. The reversal of 57032133657581 is 18575633123075.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50332143085225 + 6699990572356 = 7094515^2 + 2588434^2 .

It is a cyclic number.

It is not a de Polignac number, because 57032133657581 - 2⁶ = 57032133657517 is a prime.

It is a super-2 number, since 2×57032133657581² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57032133657511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28516066828790 + 28516066828791.

It is an arithmetic number, because the mean of its divisors is an integer number (28516066828791).

Almost surely, 2^{57032133657581} is an apocalyptic number.

It is an amenable number.

57032133657581 is a deficient number, since it is larger than the sum of its proper divisors (1).

57032133657581 is an equidigital number, since it uses as much as digits as its factorization.

57032133657581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876000, while the sum is 56.

The spelling of 57032133657581 in words is "fifty-seven trillion, thirty-two billion, one hundred thirty-three million, six hundred fifty-seven thousand, five hundred eighty-one".