56534843569 has 2 divisors, whose sum is σ = 56534843570. Its totient is φ = 56534843568.

The previous prime is 56534843489. The next prime is 56534843579. The reversal of 56534843569 is 96534843565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56161890225 + 372953344 = 236985^2 + 19312^2 .

It is a cyclic number.

It is not a de Polignac number, because 56534843569 - 2⁷ = 56534843441 is a prime.

It is a super-2 number, since 2×56534843569² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56534843579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28267421784 + 28267421785.

It is an arithmetic number, because the mean of its divisors is an integer number (28267421785).

Almost surely, 2^56534843569 is an apocalyptic number.

It is an amenable number.

56534843569 is a deficient number, since it is larger than the sum of its proper divisors (1).

56534843569 is an equidigital number, since it uses as much as digits as its factorization.

56534843569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656000, while the sum is 58.

The spelling of 56534843569 in words is "fifty-six billion, five hundred thirty-four million, eight hundred forty-three thousand, five hundred sixty-nine".