551222 has 8 divisors (see below), whose sum is σ = 944976. Its totient is φ = 236232.

The previous prime is 551219. The next prime is 551231. The reversal of 551222 is 222155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 551222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19673 + ... + 19700.

It is an arithmetic number, because the mean of its divisors is an integer number (118122).

2⁵⁵¹²²² is an apocalyptic number.

551222 is a deficient number, since it is larger than the sum of its proper divisors (393754).

551222 is a wasteful number, since it uses less digits than its factorization.

551222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39382.

The product of its digits is 200, while the sum is 17.

The square root of 551222 is about 742.4432638256. The cubic root of 551222 is about 81.9927616058.

Adding to 551222 its reverse (222155), we get a palindrome (773377).

The spelling of 551222 in words is "five hundred fifty-one thousand, two hundred twenty-two".