55222422 has 32 divisors (see below), whose sum is σ = 112942080. Its totient is φ = 17996160.

The previous prime is 55222421. The next prime is 55222423. The reversal of 55222422 is 22422255.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55222421) and next prime (55222423).

It is a junction number, because it is equal to n+sod(n) for n = 55222392 and 55222401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55222421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53047 + ... + 54077.

It is an arithmetic number, because the mean of its divisors is an integer number (3529440).

Almost surely, 2^55222422 is an apocalyptic number.

55222422 is an abundant number, since it is smaller than the sum of its proper divisors (57719658).

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

55222422 is a wasteful number, since it uses less digits than its factorization.

55222422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228.

The product of its digits is 3200, while the sum is 24.

The square root of 55222422 is about 7431.1790450776. The cubic root of 55222422 is about 380.8071991774.

Adding to 55222422 its reverse (22422255), we get a palindrome (77644677).

The spelling of 55222422 in words is "fifty-five million, two hundred twenty-two thousand, four hundred twenty-two".