255233220 has 96 divisors (see below), whose sum is σ = 783046656. Its totient is φ = 61603200.

The previous prime is 255233207. The next prime is 255233227. The reversal of 255233220 is 22332552.

255233220 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (255233227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 178147 + ... + 179573.

It is an arithmetic number, because the mean of its divisors is an integer number (8156736).

Almost surely, 2^255233220 is an apocalyptic number.

255233220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255233220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (391523328).

255233220 is an abundant number, since it is smaller than the sum of its proper divisors (527813436).

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

255233220 is a wasteful number, since it uses less digits than its factorization.

255233220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721 (or 1719 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 255233220 is about 15976.0201552201. The cubic root of 255233220 is about 634.3258350275.

Adding to 255233220 its reverse (22332552), we get a palindrome (277565772).

The spelling of 255233220 in words is "two hundred fifty-five million, two hundred thirty-three thousand, two hundred twenty".