56913532113 has 4 divisors (see below), whose sum is σ = 75884709488. Its totient is φ = 37942354740.

The previous prime is 56913532087. The next prime is 56913532129. The reversal of 56913532113 is 31123531965.

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 not a de Polignac number, because 56913532113 - 2²¹ = 56911434961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56913532133) 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, 9485588683 + ... + 9485588688.

It is an arithmetic number, because the mean of its divisors is an integer number (18971177372).

Almost surely, 2^56913532113 is an apocalyptic number.

It is an amenable number.

56913532113 is a deficient number, since it is larger than the sum of its proper divisors (18971177375).

56913532113 is a wasteful number, since it uses less digits than its factorization.

56913532113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18971177374.

The product of its digits is 72900, while the sum is 39.

The spelling of 56913532113 in words is "fifty-six billion, nine hundred thirteen million, five hundred thirty-two thousand, one hundred thirteen".