57075809731 has 2 divisors, whose sum is σ = 57075809732. Its totient is φ = 57075809730.

The previous prime is 57075809723. The next prime is 57075809767. The reversal of 57075809731 is 13790857075.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57075809731 - 2³ = 57075809723 is a prime.

It is a super-2 number, since 2×57075809731² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57075803731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28537904865 + 28537904866.

It is an arithmetic number, because the mean of its divisors is an integer number (28537904866).

Almost surely, 2^57075809731 is an apocalyptic number.

57075809731 is a deficient number, since it is larger than the sum of its proper divisors (1).

57075809731 is an equidigital number, since it uses as much as digits as its factorization.

57075809731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1852200, while the sum is 52.

The spelling of 57075809731 in words is "fifty-seven billion, seventy-five million, eight hundred nine thousand, seven hundred thirty-one".