550220444 has 24 divisors (see below), whose sum is σ = 1011429888. Its totient is φ = 261399600.

The previous prime is 550220441. The next prime is 550220471. The reversal of 550220444 is 444022055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550220441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5912 + ... + 33695.

It is an arithmetic number, because the mean of its divisors is an integer number (42142912).

Almost surely, 2^550220444 is an apocalyptic number.

It is an amenable number.

550220444 is a deficient number, since it is larger than the sum of its proper divisors (461209444).

550220444 is a wasteful number, since it uses less digits than its factorization.

550220444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39785 (or 39783 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 550220444 is about 23456.7782101464. The cubic root of 550220444 is about 819.4307192873.

Adding to 550220444 its reverse (444022055), we get a palindrome (994242499).

The spelling of 550220444 in words is "five hundred fifty million, two hundred twenty thousand, four hundred forty-four".