56055601709 has 2 divisors, whose sum is σ = 56055601710. Its totient is φ = 56055601708.

The previous prime is 56055601703. The next prime is 56055601733. The reversal of 56055601709 is 90710655065.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55685616484 + 369985225 = 235978^2 + 19235^2 .

It is a cyclic number.

It is not a de Polignac number, because 56055601709 - 2¹² = 56055597613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56055601709.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56055601703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28027800854 + 28027800855.

It is an arithmetic number, because the mean of its divisors is an integer number (28027800855).

Almost surely, 2^56055601709 is an apocalyptic number.

It is an amenable number.

56055601709 is a deficient number, since it is larger than the sum of its proper divisors (1).

56055601709 is an equidigital number, since it uses as much as digits as its factorization.

56055601709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 283500, while the sum is 44.

The spelling of 56055601709 in words is "fifty-six billion, fifty-five million, six hundred one thousand, seven hundred nine".