56835477217 has 2 divisors, whose sum is σ = 56835477218. Its totient is φ = 56835477216.

The previous prime is 56835477211. The next prime is 56835477227. The reversal of 56835477217 is 71277453865.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51736231936 + 5099245281 = 227456^2 + 71409^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56835477217 is a prime.

It is not a weakly prime, because it can be changed into another prime (56835477211) 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 as a sum of consecutive naturals, namely, 28417738608 + 28417738609.

It is an arithmetic number, because the mean of its divisors is an integer number (28417738609).

Almost surely, 2^56835477217 is an apocalyptic number.

It is an amenable number.

56835477217 is a deficient number, since it is larger than the sum of its proper divisors (1).

56835477217 is an equidigital number, since it uses as much as digits as its factorization.

56835477217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9878400, while the sum is 55.

The spelling of 56835477217 in words is "fifty-six billion, eight hundred thirty-five million, four hundred seventy-seven thousand, two hundred seventeen".