550566220 has 12 divisors (see below), whose sum is σ = 1156189104. Its totient is φ = 220226480.

The previous prime is 550566197. The next prime is 550566221. The reversal of 550566220 is 22665055.

It is not an unprimeable number, because it can be changed into a prime (550566221) 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, 13764136 + ... + 13764175.

It is an arithmetic number, because the mean of its divisors is an integer number (96349092).

Almost surely, 2^550566220 is an apocalyptic number.

It is an amenable number.

550566220 is an abundant number, since it is smaller than the sum of its proper divisors (605622884).

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

550566220 is a wasteful number, since it uses less digits than its factorization.

550566220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27528320 (or 27528318 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 550566220 is about 23464.1475447117. The cubic root of 550566220 is about 819.6023354380.

The spelling of 550566220 in words is "five hundred fifty million, five hundred sixty-six thousand, two hundred twenty".