56385089 has 2 divisors, whose sum is σ = 56385090. Its totient is φ = 56385088.

The previous prime is 56385053. The next prime is 56385097. The reversal of 56385089 is 98058365.

56385089 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., 56130064 + 255025 = 7492^2 + 505^2 .

It is a cyclic number.

It is not a de Polignac number, because 56385089 - 2²⁴ = 39607873 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56385389) 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, 28192544 + 28192545.

It is an arithmetic number, because the mean of its divisors is an integer number (28192545).

Almost surely, 2^56385089 is an apocalyptic number.

It is an amenable number.

56385089 is a deficient number, since it is larger than the sum of its proper divisors (1).

56385089 is an equidigital number, since it uses as much as digits as its factorization.

56385089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 56385089 is about 7509.0005326941. Note that the first 3 decimals coincide. The cubic root of 56385089 is about 383.4611968330.

The spelling of 56385089 in words is "fifty-six million, three hundred eighty-five thousand, eighty-nine".