561165222 has 16 divisors (see below), whose sum is σ = 1148431680. Its totient is φ = 182704872.

The previous prime is 561165217. The next prime is 561165233. The reversal of 561165222 is 222561165.

561165222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 561165222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1087272 + ... + 1087787.

It is an arithmetic number, because the mean of its divisors is an integer number (71776980).

Almost surely, 2^561165222 is an apocalyptic number.

561165222 is an abundant number, since it is smaller than the sum of its proper divisors (587266458).

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

561165222 is a wasteful number, since it uses less digits than its factorization.

561165222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2175107.

The product of its digits is 7200, while the sum is 30.

The square root of 561165222 is about 23688.9261470418. The cubic root of 561165222 is about 824.8283558432.

The spelling of 561165222 in words is "five hundred sixty-one million, one hundred sixty-five thousand, two hundred twenty-two".