550550028 has 48 divisors (see below), whose sum is σ = 1469470464. Its totient is φ = 157156800.

The previous prime is 550550003. The next prime is 550550029. The reversal of 550550028 is 820055055.

It is a junction number, because it is equal to n+sod(n) for n = 550549977 and 550550004.

It is not an unprimeable number, because it can be changed into a prime (550550029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119626 + ... + 124142.

It is an arithmetic number, because the mean of its divisors is an integer number (30613968).

Almost surely, 2^550550028 is an apocalyptic number.

It is an amenable number.

550550028 is an abundant number, since it is smaller than the sum of its proper divisors (918920436).

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

550550028 is a wasteful number, since it uses less digits than its factorization.

550550028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5982 (or 5980 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 550550028 is about 23463.8025051354. The cubic root of 550550028 is about 819.5943006001.

The spelling of 550550028 in words is "five hundred fifty million, five hundred fifty thousand, twenty-eight".