255332500 has 60 divisors (see below), whose sum is σ = 564085060. Its totient is φ = 101088000.

The previous prime is 255332447. The next prime is 255332521. The reversal of 255332500 is 5233552.

It can be written as a sum of positive squares in 10 ways, for example, as 229159044 + 26173456 = 15138^2 + 5116^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 272032 + ... + 272968.

Almost surely, 2^255332500 is an apocalyptic number.

255332500 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 255332500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282042530).

255332500 is an abundant number, since it is smaller than the sum of its proper divisors (308752560).

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

255332500 is a wasteful number, since it uses less digits than its factorization.

255332500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070 (or 1053 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 255332500 is about 15979.1270099464. The cubic root of 255332500 is about 634.4080705417.

It can be divided in two parts, 2553 and 32500, that added together give a palindrome (35053).

The spelling of 255332500 in words is "two hundred fifty-five million, three hundred thirty-two thousand, five hundred".