222255550 has 48 divisors (see below), whose sum is σ = 455555664. Its totient is φ = 80000000.

The previous prime is 222255487. The next prime is 222255557. The reversal of 222255550 is 55552222.

222255550 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222255557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53550 + ... + 57550.

It is an arithmetic number, because the mean of its divisors is an integer number (9490743).

Almost surely, 2^222255550 is an apocalyptic number.

222255550 is an abundant number, since it is smaller than the sum of its proper divisors (233300114).

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

222255550 is a wasteful number, since it uses less digits than its factorization.

222255550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4125 (or 4120 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 222255550 is about 14908.2376557392. The cubic root of 222255550 is about 605.7371430594.

It can be divided in two parts, 2222 and 55550, that multiplied together give a square (123432100 = 11110²).

The spelling of 222255550 in words is "two hundred twenty-two million, two hundred fifty-five thousand, five hundred fifty".