56004523613 has 4 divisors (see below), whose sum is σ = 56145593340. Its totient is φ = 55863453888.

The previous prime is 56004523607. The next prime is 56004523703. The reversal of 56004523613 is 31632540065.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46020117529 + 9984406084 = 214523^2 + 99922^2 .

It is a cyclic number.

It is not a de Polignac number, because 56004523613 - 2²² = 56000329309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56004523013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70534268 + ... + 70535061.

It is an arithmetic number, because the mean of its divisors is an integer number (14036398335).

Almost surely, 2^56004523613 is an apocalyptic number.

It is an amenable number.

56004523613 is a deficient number, since it is larger than the sum of its proper divisors (141069727).

56004523613 is a wasteful number, since it uses less digits than its factorization.

56004523613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141069726.

The product of its (nonzero) digits is 64800, while the sum is 35.

It can be divided in two parts, 5600452 and 3613, that added together give a palindrome (5604065).

The spelling of 56004523613 in words is "fifty-six billion, four million, five hundred twenty-three thousand, six hundred thirteen".