56533451317 has 4 divisors (see below), whose sum is σ = 64609658656. Its totient is φ = 48457243980.

The previous prime is 56533451311. The next prime is 56533451321. The reversal of 56533451317 is 71315433565.

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 not a de Polignac number, because 56533451317 - 2³ = 56533451309 is a prime.

It is a super-2 number, since 2×56533451317² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56533451311) 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, 4038103659 + ... + 4038103672.

It is an arithmetic number, because the mean of its divisors is an integer number (16152414664).

Almost surely, 2^56533451317 is an apocalyptic number.

It is an amenable number.

56533451317 is a deficient number, since it is larger than the sum of its proper divisors (8076207339).

56533451317 is an equidigital number, since it uses as much as digits as its factorization.

56533451317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8076207338.

The product of its digits is 567000, while the sum is 43.

The spelling of 56533451317 in words is "fifty-six billion, five hundred thirty-three million, four hundred fifty-one thousand, three hundred seventeen".