56680859351 has 2 divisors, whose sum is σ = 56680859352. Its totient is φ = 56680859350.

The previous prime is 56680859309. The next prime is 56680859353. The reversal of 56680859351 is 15395808665.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56680859351 is a prime.

It is a Sophie Germain prime.

Together with 56680859353, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56680859353) 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, 28340429675 + 28340429676.

It is an arithmetic number, because the mean of its divisors is an integer number (28340429676).

Almost surely, 2^56680859351 is an apocalyptic number.

56680859351 is a deficient number, since it is larger than the sum of its proper divisors (1).

56680859351 is an equidigital number, since it uses as much as digits as its factorization.

56680859351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776000, while the sum is 56.

The spelling of 56680859351 in words is "fifty-six billion, six hundred eighty million, eight hundred fifty-nine thousand, three hundred fifty-one".