56038445517 has 4 divisors (see below), whose sum is σ = 74717927360. Its totient is φ = 37358963676.

The previous prime is 56038445479. The next prime is 56038445527. The reversal of 56038445517 is 71554483065.

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 56038445517 - 2⁶ = 56038445453 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 (56038445527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9339740917 + ... + 9339740922.

It is an arithmetic number, because the mean of its divisors is an integer number (18679481840).

Almost surely, 2^56038445517 is an apocalyptic number.

It is an amenable number.

56038445517 is a deficient number, since it is larger than the sum of its proper divisors (18679481843).

56038445517 is a wasteful number, since it uses less digits than its factorization.

56038445517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18679481842.

The product of its (nonzero) digits is 2016000, while the sum is 48.

The spelling of 56038445517 in words is "fifty-six billion, thirty-eight million, four hundred forty-five thousand, five hundred seventeen".