56271161 has 2 divisors, whose sum is σ = 56271162. Its totient is φ = 56271160.

The previous prime is 56271157. The next prime is 56271167. The reversal of 56271161 is 16117265.

56271161 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., 43626025 + 12645136 = 6605^2 + 3556^2 .

It is a cyclic number.

It is not a de Polignac number, because 56271161 - 2² = 56271157 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56271167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28135580 + 28135581.

It is an arithmetic number, because the mean of its divisors is an integer number (28135581).

Almost surely, 2^56271161 is an apocalyptic number.

It is an amenable number.

56271161 is a deficient number, since it is larger than the sum of its proper divisors (1).

56271161 is an equidigital number, since it uses as much as digits as its factorization.

56271161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 29.

The square root of 56271161 is about 7501.4106006804. The cubic root of 56271161 is about 383.2027572068.

The spelling of 56271161 in words is "fifty-six million, two hundred seventy-one thousand, one hundred sixty-one".