55000089 has 12 divisors (see below), whose sum is σ = 79972672. Its totient is φ = 36423000.

The previous prime is 55000069. The next prime is 55000091. The reversal of 55000089 is 98000055.

55000089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55000089 - 2⁹ = 54999577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55000069) 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 in 11 ways as a sum of consecutive naturals, for example, 18877 + ... + 21594.

Almost surely, 2^55000089 is an apocalyptic number.

It is an amenable number.

55000089 is a deficient number, since it is larger than the sum of its proper divisors (24972583).

55000089 is a wasteful number, since it uses less digits than its factorization.

55000089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40628 (or 40625 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 55000089 is about 7416.2044874720. The cubic root of 55000089 is about 380.2954512050.

The spelling of 55000089 in words is "fifty-five million, eighty-nine", and thus it is an aban number and an uban number.