56818276513 has 4 divisors (see below), whose sum is σ = 56819570688. Its totient is φ = 56816982340.

The previous prime is 56818276451. The next prime is 56818276523. The reversal of 56818276513 is 31567281865.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56818276513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56818276523) 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, 578833 + ... + 669838.

It is an arithmetic number, because the mean of its divisors is an integer number (14204892672).

Almost surely, 2^56818276513 is an apocalyptic number.

It is an amenable number.

56818276513 is a deficient number, since it is larger than the sum of its proper divisors (1294175).

56818276513 is a wasteful number, since it uses less digits than its factorization.

56818276513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294174.

The product of its digits is 2419200, while the sum is 52.

The spelling of 56818276513 in words is "fifty-six billion, eight hundred eighteen million, two hundred seventy-six thousand, five hundred thirteen".