55227222 has 24 divisors (see below), whose sum is σ = 122443464. Its totient is φ = 17980704.

The previous prime is 55227217. The next prime is 55227233. The reversal of 55227222 is 22272255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34903 + ... + 36450.

It is an arithmetic number, because the mean of its divisors is an integer number (5101811).

Almost surely, 2^55227222 is an apocalyptic number.

55227222 is an abundant number, since it is smaller than the sum of its proper divisors (67216242).

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

55227222 is a wasteful number, since it uses less digits than its factorization.

55227222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71404 (or 71401 counting only the distinct ones).

The product of its digits is 5600, while the sum is 27.

The square root of 55227222 is about 7431.5020016145. The cubic root of 55227222 is about 380.8182322659.

Adding to 55227222 its reverse (22272255), we get a palindrome (77499477).

The spelling of 55227222 in words is "fifty-five million, two hundred twenty-seven thousand, two hundred twenty-two".