255335520 has 192 divisors, whose sum is σ = 901829376. Its totient is φ = 60180480.

The previous prime is 255335513. The next prime is 255335543. The reversal of 255335520 is 25533552.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194707 + ... + 196013.

It is an arithmetic number, because the mean of its divisors is an integer number (4697028).

Almost surely, 2^255335520 is an apocalyptic number.

255335520 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 255335520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (450914688).

255335520 is an abundant number, since it is smaller than the sum of its proper divisors (646493856).

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

255335520 is a wasteful number, since it uses less digits than its factorization.

255335520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373 (or 1365 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 30.

The square root of 255335520 is about 15979.2215079459. The cubic root of 255335520 is about 634.4105717311.

The spelling of 255335520 in words is "two hundred fifty-five million, three hundred thirty-five thousand, five hundred twenty".