255323502 has 128 divisors (see below), whose sum is σ = 680140800. Its totient is φ = 70333920.

The previous prime is 255323489. The next prime is 255323531. The reversal of 255323502 is 205323552.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 949024 + ... + 949292.

It is an arithmetic number, because the mean of its divisors is an integer number (5313600).

Almost surely, 2^255323502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255323502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340070400).

255323502 is an abundant number, since it is smaller than the sum of its proper divisors (424817298).

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

255323502 is an equidigital number, since it uses as much as digits as its factorization.

255323502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 255323502 is about 15978.8454526602. The cubic root of 255323502 is about 634.4006182056.

The spelling of 255323502 in words is "two hundred fifty-five million, three hundred twenty-three thousand, five hundred two".