56503133611 has 4 divisors (see below), whose sum is σ = 56630680632. Its totient is φ = 56375586592.

The previous prime is 56503133587. The next prime is 56503133653. The reversal of 56503133611 is 11633130565.

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

It is a cyclic number.

It is not a de Polignac number, because 56503133611 - 2⁵ = 56503133579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56503133111) 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, 63772846 + ... + 63773731.

It is an arithmetic number, because the mean of its divisors is an integer number (14157670158).

Almost surely, 2^56503133611 is an apocalyptic number.

56503133611 is a deficient number, since it is larger than the sum of its proper divisors (127547021).

56503133611 is a wasteful number, since it uses less digits than its factorization.

56503133611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127547020.

The product of its (nonzero) digits is 24300, while the sum is 34.

The spelling of 56503133611 in words is "fifty-six billion, five hundred three million, one hundred thirty-three thousand, six hundred eleven".