56717375173 has 4 divisors (see below), whose sum is σ = 56718063340. Its totient is φ = 56716687008.

The previous prime is 56717375149. The next prime is 56717375243. The reversal of 56717375173 is 37157371765.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37157371765 = 5 ⋅7431474353.

It can be written as a sum of positive squares in 2 ways, for example, as 52432756324 + 4284618849 = 228982^2 + 65457^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56717375173 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56717375173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56717375873) 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, 200478 + ... + 391951.

It is an arithmetic number, because the mean of its divisors is an integer number (14179515835).

Almost surely, 2^56717375173 is an apocalyptic number.

It is an amenable number.

56717375173 is a deficient number, since it is larger than the sum of its proper divisors (688167).

56717375173 is an equidigital number, since it uses as much as digits as its factorization.

56717375173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688166.

The product of its digits is 3241350, while the sum is 52.

The spelling of 56717375173 in words is "fifty-six billion, seven hundred seventeen million, three hundred seventy-five thousand, one hundred seventy-three".