57085571929 has 2 divisors, whose sum is σ = 57085571930. Its totient is φ = 57085571928.

The previous prime is 57085571897. The next prime is 57085572007. The reversal of 57085571929 is 92917558075.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53929379529 + 3156192400 = 232227^2 + 56180^2 .

It is a cyclic number.

It is not a de Polignac number, because 57085571929 - 2⁵ = 57085571897 is a prime.

It is a super-2 number, since 2×57085571929² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57085571029) 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, 28542785964 + 28542785965.

It is an arithmetic number, because the mean of its divisors is an integer number (28542785965).

Almost surely, 2^57085571929 is an apocalyptic number.

It is an amenable number.

57085571929 is a deficient number, since it is larger than the sum of its proper divisors (1).

57085571929 is an equidigital number, since it uses as much as digits as its factorization.

57085571929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7938000, while the sum is 58.

The spelling of 57085571929 in words is "fifty-seven billion, eighty-five million, five hundred seventy-one thousand, nine hundred twenty-nine".