57122810081 has 2 divisors, whose sum is σ = 57122810082. Its totient is φ = 57122810080.

The previous prime is 57122810071. The next prime is 57122810123. The reversal of 57122810081 is 18001822175.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35648838481 + 21473971600 = 188809^2 + 146540^2 .

It is a cyclic number.

It is not a de Polignac number, because 57122810081 - 2¹⁰ = 57122809057 is a prime.

It is a super-2 number, since 2×57122810081² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57122810071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28561405040 + 28561405041.

It is an arithmetic number, because the mean of its divisors is an integer number (28561405041).

Almost surely, 2^57122810081 is an apocalyptic number.

It is an amenable number.

57122810081 is a deficient number, since it is larger than the sum of its proper divisors (1).

57122810081 is an equidigital number, since it uses as much as digits as its factorization.

57122810081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 35.

The spelling of 57122810081 in words is "fifty-seven billion, one hundred twenty-two million, eight hundred ten thousand, eighty-one".