56375963729 has 2 divisors, whose sum is σ = 56375963730. Its totient is φ = 56375963728.

The previous prime is 56375963723. The next prime is 56375963767. The reversal of 56375963729 is 92736957365.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55074702400 + 1301261329 = 234680^2 + 36073^2 .

It is a cyclic number.

It is not a de Polignac number, because 56375963729 - 2⁸ = 56375963473 is a prime.

It is not a weakly prime, because it can be changed into another prime (56375963723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28187981864 + 28187981865.

It is an arithmetic number, because the mean of its divisors is an integer number (28187981865).

Almost surely, 2^56375963729 is an apocalyptic number.

It is an amenable number.

56375963729 is a deficient number, since it is larger than the sum of its proper divisors (1).

56375963729 is an equidigital number, since it uses as much as digits as its factorization.

56375963729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64297800, while the sum is 62.

The spelling of 56375963729 in words is "fifty-six billion, three hundred seventy-five million, nine hundred sixty-three thousand, seven hundred twenty-nine".