56835475691 has 2 divisors, whose sum is σ = 56835475692. Its totient is φ = 56835475690.

The previous prime is 56835475687. The next prime is 56835475757. The reversal of 56835475691 is 19657453865.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56835475691 - 2² = 56835475687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56835475691.

It is not a weakly prime, because it can be changed into another prime (56835475601) 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, 28417737845 + 28417737846.

It is an arithmetic number, because the mean of its divisors is an integer number (28417737846).

Almost surely, 2^56835475691 is an apocalyptic number.

56835475691 is a deficient number, since it is larger than the sum of its proper divisors (1).

56835475691 is an equidigital number, since it uses as much as digits as its factorization.

56835475691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216000, while the sum is 59.

The spelling of 56835475691 in words is "fifty-six billion, eight hundred thirty-five million, four hundred seventy-five thousand, six hundred ninety-one".