255533322 has 64 divisors (see below), whose sum is σ = 576201600. Its totient is φ = 74868480.

The previous prime is 255533309. The next prime is 255533323. The reversal of 255533322 is 223335552.

It is a self number, because there is not a number n which added to its sum of digits gives 255533322.

It is not an unprimeable number, because it can be changed into a prime (255533323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 656704 + ... + 657092.

It is an arithmetic number, because the mean of its divisors is an integer number (9003150).

Almost surely, 2^255533322 is an apocalyptic number.

255533322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 255533322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288100800).

255533322 is an abundant number, since it is smaller than the sum of its proper divisors (320668278).

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

255533322 is a wasteful number, since it uses less digits than its factorization.

255533322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711.

The product of its digits is 27000, while the sum is 30.

The square root of 255533322 is about 15985.4096600619. The cubic root of 255533322 is about 634.5743500802.

Adding to 255533322 its reverse (223335552), we get a palindrome (478868874).

The spelling of 255533322 in words is "two hundred fifty-five million, five hundred thirty-three thousand, three hundred twenty-two".