255516222 has 32 divisors (see below), whose sum is σ = 582718752. Its totient is φ = 73995264.

The previous prime is 255516221. The next prime is 255516227. The reversal of 255516222 is 222615552.

255516222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 255516222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255516221) 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 15 ways as a sum of consecutive naturals, for example, 95023 + ... + 97674.

It is an arithmetic number, because the mean of its divisors is an integer number (18209961).

Almost surely, 2^255516222 is an apocalyptic number.

255516222 is an abundant number, since it is smaller than the sum of its proper divisors (327202530).

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

255516222 is a wasteful number, since it uses less digits than its factorization.

255516222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192732.

The product of its digits is 12000, while the sum is 30.

The square root of 255516222 is about 15984.8747883742. The cubic root of 255516222 is about 634.5601947660.

The spelling of 255516222 in words is "two hundred fifty-five million, five hundred sixteen thousand, two hundred twenty-two".