550017220 has 24 divisors (see below), whose sum is σ = 1157111424. Its totient is φ = 219611616.

The previous prime is 550017211. The next prime is 550017227. The reversal of 550017220 is 22710055.

It is a junction number, because it is equal to n+sod(n) for n = 550017191 and 550017200.

It is not an unprimeable number, because it can be changed into a prime (550017227) 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, 13164 + ... + 35683.

It is an arithmetic number, because the mean of its divisors is an integer number (48212976).

Almost surely, 2^550017220 is an apocalyptic number.

It is an amenable number.

550017220 is an abundant number, since it is smaller than the sum of its proper divisors (607094204).

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

550017220 is a wasteful number, since it uses less digits than its factorization.

550017220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49419 (or 49417 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 550017220 is about 23452.4459278771. The cubic root of 550017220 is about 819.3298212461.

Adding to 550017220 its reverse (22710055), we get a palindrome (572727275).

The spelling of 550017220 in words is "five hundred fifty million, seventeen thousand, two hundred twenty".