255328320 has 224 divisors, whose sum is σ = 896112000. Its totient is φ = 61194240.

The previous prime is 255328291. The next prime is 255328331. The reversal of 255328320 is 23823552.

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

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, 511431 + ... + 511929.

It is an arithmetic number, because the mean of its divisors is an integer number (4000500).

Almost surely, 2^255328320 is an apocalyptic number.

255328320 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 255328320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (448056000).

255328320 is an abundant number, since it is smaller than the sum of its proper divisors (640783680).

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

255328320 is a wasteful number, since it uses less digits than its factorization.

255328320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573 (or 563 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 255328320 is about 15978.9962137801. The cubic root of 255328320 is about 634.4046085981.

The spelling of 255328320 in words is "two hundred fifty-five million, three hundred twenty-eight thousand, three hundred twenty".