550441220 has 48 divisors (see below), whose sum is σ = 1329218688. Its totient is φ = 187557120.

The previous prime is 550441183. The next prime is 550441231. The reversal of 550441220 is 22144055.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10760 + ... + 34880.

It is an arithmetic number, because the mean of its divisors is an integer number (27692056).

Almost surely, 2^550441220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550441220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (664609344).

550441220 is an abundant number, since it is smaller than the sum of its proper divisors (778777468).

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

550441220 is a wasteful number, since it uses less digits than its factorization.

550441220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24300 (or 24298 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 550441220 is about 23461.4837552956. The cubic root of 550441220 is about 819.5403035137.

Adding to 550441220 its reverse (22144055), we get a palindrome (572585275).

The spelling of 550441220 in words is "five hundred fifty million, four hundred forty-one thousand, two hundred twenty".