55222256 has 20 divisors (see below), whose sum is σ = 113287392. Its totient is φ = 25986816.

The previous prime is 55222247. The next prime is 55222291. The reversal of 55222256 is 65222255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101240 + ... + 101783.

Almost surely, 2^55222256 is an apocalyptic number.

It is an amenable number.

55222256 is an abundant number, since it is smaller than the sum of its proper divisors (58065136).

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

55222256 is a wasteful number, since it uses less digits than its factorization.

55222256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203048 (or 203042 counting only the distinct ones).

The product of its digits is 12000, while the sum is 29.

The square root of 55222256 is about 7431.1678759129. The cubic root of 55222256 is about 380.8068176050.

Subtracting 55222256 from its reverse (65222255), we obtain a palindrome (9999999).

The spelling of 55222256 in words is "fifty-five million, two hundred twenty-two thousand, two hundred fifty-six".