56875214681 has 2 divisors, whose sum is σ = 56875214682. Its totient is φ = 56875214680.

The previous prime is 56875214659. The next prime is 56875214689. The reversal of 56875214681 is 18641257865.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49000249600 + 7874965081 = 221360^2 + 88741^2 .

It is a cyclic number.

It is not a de Polignac number, because 56875214681 - 2¹⁰ = 56875213657 is a prime.

It is a super-2 number, since 2×56875214681² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56875214689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28437607340 + 28437607341.

It is an arithmetic number, because the mean of its divisors is an integer number (28437607341).

Almost surely, 2^56875214681 is an apocalyptic number.

It is an amenable number.

56875214681 is a deficient number, since it is larger than the sum of its proper divisors (1).

56875214681 is an equidigital number, since it uses as much as digits as its factorization.

56875214681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3225600, while the sum is 53.

The spelling of 56875214681 in words is "fifty-six billion, eight hundred seventy-five million, two hundred fourteen thousand, six hundred eighty-one".