55686736474613 has 2 divisors, whose sum is σ = 55686736474614. Its totient is φ = 55686736474612.

The previous prime is 55686736474609. The next prime is 55686736474673. The reversal of 55686736474613 is 31647463768655.

55686736474613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33553033080004 + 22133703394609 = 5792498^2 + 4704647^2 .

It is a cyclic number.

It is not a de Polignac number, because 55686736474613 - 2² = 55686736474609 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55686736474673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27843368237306 + 27843368237307.

It is an arithmetic number, because the mean of its divisors is an integer number (27843368237307).

Almost surely, 2^{55686736474613} is an apocalyptic number.

It is an amenable number.

55686736474613 is a deficient number, since it is larger than the sum of its proper divisors (1).

55686736474613 is an equidigital number, since it uses as much as digits as its factorization.

55686736474613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1828915200, while the sum is 71.

The spelling of 55686736474613 in words is "fifty-five trillion, six hundred eighty-six billion, seven hundred thirty-six million, four hundred seventy-four thousand, six hundred thirteen".