56816181049 has 4 divisors (see below), whose sum is σ = 60158309364. Its totient is φ = 53474052736.

The previous prime is 56816181047. The next prime is 56816181067. The reversal of 56816181049 is 94018161865.

56816181049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 37439541049 + 19376640000 = 193493^2 + 139200^2 .

It is a cyclic number.

It is not a de Polignac number, because 56816181049 - 2¹ = 56816181047 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56816180993 and 56816181011.

It is not an unprimeable number, because it can be changed into a prime (56816181041) 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, 1671064132 + ... + 1671064165.

It is an arithmetic number, because the mean of its divisors is an integer number (15039577341).

Almost surely, 2^56816181049 is an apocalyptic number.

It is an amenable number.

56816181049 is a deficient number, since it is larger than the sum of its proper divisors (3342128315).

56816181049 is a wasteful number, since it uses less digits than its factorization.

56816181049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3342128314.

The product of its (nonzero) digits is 414720, while the sum is 49.

The spelling of 56816181049 in words is "fifty-six billion, eight hundred sixteen million, one hundred eighty-one thousand, forty-nine".