57330397081 has 4 divisors (see below), whose sum is σ = 57382659252. Its totient is φ = 57278134912.

The previous prime is 57330397009. The next prime is 57330397087. The reversal of 57330397081 is 18079303375.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40073633856 + 17256763225 = 200184^2 + 131365^2 .

It is a cyclic number.

It is not a de Polignac number, because 57330397081 - 2³⁵ = 22970658713 is a prime.

It is a super-2 number, since 2×57330397081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57330397087) 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 in 3 ways as a sum of consecutive naturals, for example, 26129440 + ... + 26131633.

It is an arithmetic number, because the mean of its divisors is an integer number (14345664813).

Almost surely, 2^57330397081 is an apocalyptic number.

It is an amenable number.

57330397081 is a deficient number, since it is larger than the sum of its proper divisors (52262171).

57330397081 is a wasteful number, since it uses less digits than its factorization.

57330397081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52262170.

The product of its (nonzero) digits is 476280, while the sum is 46.

The spelling of 57330397081 in words is "fifty-seven billion, three hundred thirty million, three hundred ninety-seven thousand, eighty-one".