56493578120813 has 2 divisors, whose sum is σ = 56493578120814. Its totient is φ = 56493578120812.

The previous prime is 56493578120807. The next prime is 56493578120857. The reversal of 56493578120813 is 31802187539465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38782964394409 + 17710613726404 = 6227597^2 + 4208398^2 .

It is a cyclic number.

It is not a de Polignac number, because 56493578120813 - 2⁸ = 56493578120557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56493578120803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28246789060406 + 28246789060407.

It is an arithmetic number, because the mean of its divisors is an integer number (28246789060407).

It is a 1-persistent number, because it is pandigital, but 2⋅56493578120813 = 112987156241626 is not.

Almost surely, 2^{56493578120813} is an apocalyptic number.

It is an amenable number.

56493578120813 is a deficient number, since it is larger than the sum of its proper divisors (1).

56493578120813 is an equidigital number, since it uses as much as digits as its factorization.

56493578120813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43545600, while the sum is 62.

The spelling of 56493578120813 in words is "fifty-six trillion, four hundred ninety-three billion, five hundred seventy-eight million, one hundred twenty thousand, eight hundred thirteen".