56231747047 has 4 divisors (see below), whose sum is σ = 64264853776. Its totient is φ = 48198640320.

The previous prime is 56231747017. The next prime is 56231747063. The reversal of 56231747047 is 74074713265.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56231747047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56231746988 and 56231747006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56231747017) 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, 4016553354 + ... + 4016553367.

It is an arithmetic number, because the mean of its divisors is an integer number (16066213444).

Almost surely, 2^56231747047 is an apocalyptic number.

56231747047 is a deficient number, since it is larger than the sum of its proper divisors (8033106729).

56231747047 is an equidigital number, since it uses as much as digits as its factorization.

56231747047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8033106728.

The product of its (nonzero) digits is 987840, while the sum is 46.

It can be divided in two parts, 56231 and 747047, that added together give a triangular number (803278 = T₁₂₆₇).

The spelling of 56231747047 in words is "fifty-six billion, two hundred thirty-one million, seven hundred forty-seven thousand, forty-seven".