550221205 has 16 divisors (see below), whose sum is σ = 683925120. Its totient is φ = 424443712.

The previous prime is 550221187. The next prime is 550221211. The reversal of 550221205 is 502122055.

550221205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 550221205 - 2⁵ = 550221173 is a prime.

It is a congruent 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, 135312 + ... + 139318.

It is an arithmetic number, because the mean of its divisors is an integer number (42745320).

Almost surely, 2^550221205 is an apocalyptic number.

It is an amenable number.

550221205 is a deficient number, since it is larger than the sum of its proper divisors (133703915).

550221205 is a wasteful number, since it uses less digits than its factorization.

550221205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4988.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 550221205 is about 23456.7944314648. The cubic root of 550221205 is about 819.4310970671.

The spelling of 550221205 in words is "five hundred fifty million, two hundred twenty-one thousand, two hundred five".