56117277745 has 4 divisors (see below), whose sum is σ = 67340733300. Its totient is φ = 44893822192.

The previous prime is 56117277739. The next prime is 56117277761. The reversal of 56117277745 is 54777271165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54777271165 = 5 ⋅10955454233.

It can be written as a sum of positive squares in 2 ways, for example, as 16094474496 + 40022803249 = 126864^2 + 200057^2 .

It is a cyclic number.

It is not a de Polignac number, because 56117277745 - 2³ = 56117277737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56117277692 and 56117277701.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5611727770 + ... + 5611727779.

It is an arithmetic number, because the mean of its divisors is an integer number (16835183325).

Almost surely, 2^56117277745 is an apocalyptic number.

It is an amenable number.

56117277745 is a deficient number, since it is larger than the sum of its proper divisors (11223455555).

56117277745 is a wasteful number, since it uses less digits than its factorization.

56117277745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11223455554.

The product of its digits is 2881200, while the sum is 52.

The spelling of 56117277745 in words is "fifty-six billion, one hundred seventeen million, two hundred seventy-seven thousand, seven hundred forty-five".