56816727133 has 4 divisors (see below), whose sum is σ = 56863568188. Its totient is φ = 56769886080.

The previous prime is 56816727113. The next prime is 56816727161. The reversal of 56816727133 is 33172761865.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2267854884 + 54548872249 = 47622^2 + 233557^2 .

It is a cyclic number.

It is not a de Polignac number, because 56816727133 - 2⁹ = 56816726621 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 (56816727113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23418708 + ... + 23421133.

It is an arithmetic number, because the mean of its divisors is an integer number (14215892047).

Almost surely, 2^56816727133 is an apocalyptic number.

It is an amenable number.

56816727133 is a deficient number, since it is larger than the sum of its proper divisors (46841055).

56816727133 is a wasteful number, since it uses less digits than its factorization.

56816727133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46841054.

The product of its digits is 1270080, while the sum is 49.

The spelling of 56816727133 in words is "fifty-six billion, eight hundred sixteen million, seven hundred twenty-seven thousand, one hundred thirty-three".