56711120281 has 2 divisors, whose sum is σ = 56711120282. Its totient is φ = 56711120280.

The previous prime is 56711120243. The next prime is 56711120327. The reversal of 56711120281 is 18202111765.

56711120281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56636384256 + 74736025 = 237984^2 + 8645^2 .

It is a cyclic number.

It is not a de Polignac number, because 56711120281 - 2⁷ = 56711120153 is a prime.

It is a super-2 number, since 2×56711120281² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56711120231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28355560140 + 28355560141.

It is an arithmetic number, because the mean of its divisors is an integer number (28355560141).

Almost surely, 2^56711120281 is an apocalyptic number.

It is an amenable number.

56711120281 is a deficient number, since it is larger than the sum of its proper divisors (1).

56711120281 is an equidigital number, since it uses as much as digits as its factorization.

56711120281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 34.

The spelling of 56711120281 in words is "fifty-six billion, seven hundred eleven million, one hundred twenty thousand, two hundred eighty-one".