56543034565 has 16 divisors (see below), whose sum is σ = 68084243568. Its totient is φ = 45079543296.

The previous prime is 56543034511. The next prime is 56543034571.

56543034565 is nontrivially palindromic in base 10.

56543034565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1799201889 + 54743832676 = 42417^2 + 233974^2 .

It is a cyclic number.

It is not a de Polignac number, because 56543034565 - 2⁷ = 56543034437 is a prime.

It is a super-2 number, since 2×56543034565² (a number of 22 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2661967 + ... + 2683123.

It is an arithmetic number, because the mean of its divisors is an integer number (4255265223).

Almost surely, 2^56543034565 is an apocalyptic number.

It is an amenable number.

56543034565 is a deficient number, since it is larger than the sum of its proper divisors (11541209003).

56543034565 is a wasteful number, since it uses less digits than its factorization.

56543034565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22968.

The product of its (nonzero) digits is 3240000, while the sum is 46.

It can be divided in two parts, 565430 and 34565, that added together give a palindrome (599995).

The spelling of 56543034565 in words is "fifty-six billion, five hundred forty-three million, thirty-four thousand, five hundred sixty-five".