56055055009813 has 2 divisors, whose sum is σ = 56055055009814. Its totient is φ = 56055055009812.

The previous prime is 56055055009771. The next prime is 56055055009879. The reversal of 56055055009813 is 31890055055065.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46143123594129 + 9911931415684 = 6792873^2 + 3148322^2 .

It is a cyclic number.

It is not a de Polignac number, because 56055055009813 - 2⁴⁵ = 20870682920981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56055055004813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28027527504906 + 28027527504907.

It is an arithmetic number, because the mean of its divisors is an integer number (28027527504907).

Almost surely, 2^{56055055009813} is an apocalyptic number.

It is an amenable number.

56055055009813 is a deficient number, since it is larger than the sum of its proper divisors (1).

56055055009813 is an equidigital number, since it uses as much as digits as its factorization.

56055055009813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4050000, while the sum is 52.

The spelling of 56055055009813 in words is "fifty-six trillion, fifty-five billion, fifty-five million, nine thousand, eight hundred thirteen".