56408089 has 2 divisors, whose sum is σ = 56408090. Its totient is φ = 56408088.

The previous prime is 56408083. The next prime is 56408117. The reversal of 56408089 is 98080465.

56408089 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., 56370064 + 38025 = 7508^2 + 195^2 .

It is a cyclic number.

It is not a de Polignac number, because 56408089 - 2³ = 56408081 is a prime.

It is not a weakly prime, because it can be changed into another prime (56408081) 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, 28204044 + 28204045.

It is an arithmetic number, because the mean of its divisors is an integer number (28204045).

Almost surely, 2^56408089 is an apocalyptic number.

It is an amenable number.

56408089 is a deficient number, since it is larger than the sum of its proper divisors (1).

56408089 is an equidigital number, since it uses as much as digits as its factorization.

56408089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 56408089 is about 7510.5318719782. The cubic root of 56408089 is about 383.5133288698.

The spelling of 56408089 in words is "fifty-six million, four hundred eight thousand, eighty-nine".