56055122623861 has 2 divisors, whose sum is σ = 56055122623862. Its totient is φ = 56055122623860.

The previous prime is 56055122623807. The next prime is 56055122623879. The reversal of 56055122623861 is 16832622155065.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54256924764900 + 1798197858961 = 7365930^2 + 1340969^2 .

It is a cyclic number.

It is not a de Polignac number, because 56055122623861 - 2⁹ = 56055122623349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56055122623799 and 56055122623808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56055122623361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28027561311930 + 28027561311931.

It is an arithmetic number, because the mean of its divisors is an integer number (28027561311931).

Almost surely, 2^{56055122623861} is an apocalyptic number.

It is an amenable number.

56055122623861 is a deficient number, since it is larger than the sum of its proper divisors (1).

56055122623861 is an equidigital number, since it uses as much as digits as its factorization.

56055122623861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184000, while the sum is 52.

The spelling of 56055122623861 in words is "fifty-six trillion, fifty-five billion, one hundred twenty-two million, six hundred twenty-three thousand, eight hundred sixty-one".