55422089 has 2 divisors, whose sum is σ = 55422090. Its totient is φ = 55422088.

The previous prime is 55422083. The next prime is 55422109. The reversal of 55422089 is 98022455.

It is a happy number.

55422089 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., 37613689 + 17808400 = 6133^2 + 4220^2 .

It is a cyclic number.

It is not a de Polignac number, because 55422089 - 2⁸ = 55421833 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (55422083) 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, 27711044 + 27711045.

It is an arithmetic number, because the mean of its divisors is an integer number (27711045).

Almost surely, 2^55422089 is an apocalyptic number.

It is an amenable number.

55422089 is a deficient number, since it is larger than the sum of its proper divisors (1).

55422089 is an equidigital number, since it uses as much as digits as its factorization.

55422089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 55422089 is about 7444.6013325094. The cubic root of 55422089 is about 381.2656070293.

The spelling of 55422089 in words is "fifty-five million, four hundred twenty-two thousand, eighty-nine".