56272289 has 2 divisors, whose sum is σ = 56272290. Its totient is φ = 56272288.

The previous prime is 56272277. The next prime is 56272291. The reversal of 56272289 is 98227265.

56272289 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., 31192225 + 25080064 = 5585^2 + 5008^2 .

It is a cyclic number.

It is not a de Polignac number, because 56272289 - 2⁸ = 56272033 is a prime.

Together with 56272291, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56272219) 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, 28136144 + 28136145.

It is an arithmetic number, because the mean of its divisors is an integer number (28136145).

Almost surely, 2^56272289 is an apocalyptic number.

It is an amenable number.

56272289 is a deficient number, since it is larger than the sum of its proper divisors (1).

56272289 is an equidigital number, since it uses as much as digits as its factorization.

56272289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 41.

The square root of 56272289 is about 7501.4857861626. The cubic root of 56272289 is about 383.2053177240.

The spelling of 56272289 in words is "fifty-six million, two hundred seventy-two thousand, two hundred eighty-nine".