551343222 has 24 divisors (see below), whose sum is σ = 1203176520. Its totient is φ = 182458080.

The previous prime is 551343161. The next prime is 551343223. The reversal of 551343222 is 222343155.

It is a happy number.

551343222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551343223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107679 + ... + 112682.

It is an arithmetic number, because the mean of its divisors is an integer number (50132355).

Almost surely, 2^551343222 is an apocalyptic number.

551343222 is an abundant number, since it is smaller than the sum of its proper divisors (651833298).

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

551343222 is a wasteful number, since it uses less digits than its factorization.

551343222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220508 (or 220505 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 551343222 is about 23480.6989248617. The cubic root of 551343222 is about 819.9877164529.

Adding to 551343222 its reverse (222343155), we get a palindrome (773686377).

The spelling of 551343222 in words is "five hundred fifty-one million, three hundred forty-three thousand, two hundred twenty-two".