55089906 has 8 divisors (see below), whose sum is σ = 110179824. Its totient is φ = 18363300.

The previous prime is 55089901. The next prime is 55089917. The reversal of 55089906 is 60998055.

55089906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

55089906 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (55089901) 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 3 ways as a sum of consecutive naturals, for example, 4590820 + ... + 4590831.

It is an arithmetic number, because the mean of its divisors is an integer number (13772478).

Almost surely, 2^55089906 is an apocalyptic number.

55089906 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55089906 is a wasteful number, since it uses less digits than its factorization.

55089906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9181656.

The product of its (nonzero) digits is 97200, while the sum is 42.

The square root of 55089906 is about 7422.2574733028. The cubic root of 55089906 is about 380.5023503866.

The spelling of 55089906 in words is "fifty-five million, eighty-nine thousand, nine hundred six".