56081 has 2 divisors, whose sum is σ = 56082. Its totient is φ = 56080.

The previous prime is 56053. The next prime is 56087. The reversal of 56081 is 18065.

56081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36481 + 19600 = 191^2 + 140^2 .

It is a cyclic number.

It is not a de Polignac number, because 56081 - 2¹⁰ = 55057 is a prime.

It is a super-2 number, since 2×56081² = 6290157122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 6.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (56087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28040 + 28041.

It is an arithmetic number, because the mean of its divisors is an integer number (28041).

2⁵⁶⁰⁸¹ is an apocalyptic number.

It is an amenable number.

56081 is a deficient number, since it is larger than the sum of its proper divisors (1).

56081 is an equidigital number, since it uses as much as digits as its factorization.

56081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 56081 is about 236.8142732185. The cubic root of 56081 is about 38.2770608910.

The spelling of 56081 in words is "fifty-six thousand, eighty-one".