55233222 has 32 divisors (see below), whose sum is σ = 121875840. Its totient is φ = 16547520.

The previous prime is 55233181. The next prime is 55233229. The reversal of 55233222 is 22233255.

55233222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 55233192 and 55233201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55233229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1173 + ... + 10575.

It is an arithmetic number, because the mean of its divisors is an integer number (3808620).

Almost surely, 2^55233222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55233222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60937920).

55233222 is an abundant number, since it is smaller than the sum of its proper divisors (66642618).

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

55233222 is a wasteful number, since it uses less digits than its factorization.

55233222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9508.

The product of its digits is 3600, while the sum is 24.

The square root of 55233222 is about 7431.9056775500. The cubic root of 55233222 is about 380.8320227275.

Adding to 55233222 its reverse (22233255), we get a palindrome (77466477).

It can be divided in two parts, 55233 and 222, that added together give a palindrome (55455).

The spelling of 55233222 in words is "fifty-five million, two hundred thirty-three thousand, two hundred twenty-two".