56501010565 has 16 divisors (see below), whose sum is σ = 68525098992. Its totient is φ = 44718557184.

The previous prime is 56501010563. The next prime is 56501010583.

56501010565 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 8 ways, for example, as 1246866721 + 55254143844 = 35311^2 + 235062^2 .

It is a cyclic number.

It is not a de Polignac number, because 56501010565 - 2¹ = 56501010563 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56501010565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56501010563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1414447 + ... + 1453843.

It is an arithmetic number, because the mean of its divisors is an integer number (4282818687).

Almost surely, 2^56501010565 is an apocalyptic number.

It is an amenable number.

56501010565 is a deficient number, since it is larger than the sum of its proper divisors (12024088427).

56501010565 is a wasteful number, since it uses less digits than its factorization.

56501010565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42456.

The product of its (nonzero) digits is 22500, while the sum is 34.

It can be divided in two parts, 565010 and 10565, that added together give a palindrome (575575).

The spelling of 56501010565 in words is "fifty-six billion, five hundred one million, ten thousand, five hundred sixty-five".