550928 has 20 divisors (see below), whose sum is σ = 1220160. Its totient is φ = 236064.

The previous prime is 550909. The next prime is 550937. The reversal of 550928 is 829055.

It is a super-2 number, since 2×550928² = 607043322368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 550928.

It is an unprimeable number.

550928 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2348 + ... + 2571.

It is an arithmetic number, because the mean of its divisors is an integer number (61008).

2⁵⁵⁰⁹²⁸ is an apocalyptic number.

It is an amenable number.

550928 is an abundant number, since it is smaller than the sum of its proper divisors (669232).

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

550928 is a wasteful number, since it uses less digits than its factorization.

550928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4934 (or 4928 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 550928 is about 742.2452424906. The cubic root of 550928 is about 81.9781817820.

The spelling of 550928 in words is "five hundred fifty thousand, nine hundred twenty-eight".