55000330 has 32 divisors (see below), whose sum is σ = 123431040. Its totient is φ = 17142720.

The previous prime is 55000301. The next prime is 55000357. The reversal of 55000330 is 3300055.

It is a happy number.

55000330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 34945 + ... + 36484.

It is an arithmetic number, because the mean of its divisors is an integer number (3857220).

Almost surely, 2^55000330 is an apocalyptic number.

55000330 is an abundant number, since it is smaller than the sum of its proper divisors (68430710).

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

55000330 is a wasteful number, since it uses less digits than its factorization.

55000330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71454.

The product of its (nonzero) digits is 225, while the sum is 16.

The square root of 55000330 is about 7416.2207356578. The cubic root of 55000330 is about 380.2960066651.

Adding to 55000330 its reverse (3300055), we get a palindrome (58300385).

The spelling of 55000330 in words is "fifty-five million, three hundred thirty", and thus it is an aban number.