56319089 has 2 divisors, whose sum is σ = 56319090. Its totient is φ = 56319088.

The previous prime is 56319023. The next prime is 56319091. The reversal of 56319089 is 98091365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55651600 + 667489 = 7460^2 + 817^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56319089 is a prime.

Together with 56319091, 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 (56315089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28159544 + 28159545.

It is an arithmetic number, because the mean of its divisors is an integer number (28159545).

Almost surely, 2^56319089 is an apocalyptic number.

It is an amenable number.

56319089 is a deficient number, since it is larger than the sum of its proper divisors (1).

56319089 is an equidigital number, since it uses as much as digits as its factorization.

56319089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 56319089 is about 7504.6045198931. The cubic root of 56319089 is about 383.3115218003.

The spelling of 56319089 in words is "fifty-six million, three hundred nineteen thousand, eighty-nine".