55110222 has 24 divisors (see below), whose sum is σ = 125690760. Its totient is φ = 17403120.

The previous prime is 55110221. The next prime is 55110233. The reversal of 55110222 is 22201155.

55110222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 55110195 and 55110204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55110221) 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 11 ways as a sum of consecutive naturals, for example, 80229 + ... + 80912.

It is an arithmetic number, because the mean of its divisors is an integer number (5237115).

Almost surely, 2^55110222 is an apocalyptic number.

55110222 is an abundant number, since it is smaller than the sum of its proper divisors (70580538).

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

55110222 is a wasteful number, since it uses less digits than its factorization.

55110222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161168 (or 161165 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 55110222 is about 7423.6259334641. The cubic root of 55110222 is about 380.5491183958.

Adding to 55110222 its reverse (22201155), we get a palindrome (77311377).

The spelling of 55110222 in words is "fifty-five million, one hundred ten thousand, two hundred twenty-two".