56443263260689 has 2 divisors, whose sum is σ = 56443263260690. Its totient is φ = 56443263260688.

The previous prime is 56443263260641. The next prime is 56443263260711. The reversal of 56443263260689 is 98606236234465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56434125430225 + 9137830464 = 7512265^2 + 95592^2 .

It is a cyclic number.

It is not a de Polignac number, because 56443263260689 - 2³⁷ = 56305824307217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56443263260689.

It is not a weakly prime, because it can be changed into another prime (56443263267689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28221631630344 + 28221631630345.

It is an arithmetic number, because the mean of its divisors is an integer number (28221631630345).

Almost surely, 2^{56443263260689} is an apocalyptic number.

It is an amenable number.

56443263260689 is a deficient number, since it is larger than the sum of its proper divisors (1).

56443263260689 is an equidigital number, since it uses as much as digits as its factorization.

56443263260689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 268738560, while the sum is 64.

The spelling of 56443263260689 in words is "fifty-six trillion, four hundred forty-three billion, two hundred sixty-three million, two hundred sixty thousand, six hundred eighty-nine".