255330816 has 160 divisors (see below), whose sum is σ = 772242240. Its totient is φ = 74317824.

The previous prime is 255330793. The next prime is 255330841. The reversal of 255330816 is 618033552.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 379056 + ... + 379728.

It is an arithmetic number, because the mean of its divisors is an integer number (4826514).

Almost surely, 2^255330816 is an apocalyptic number.

255330816 is a gapful number since it is divisible by the number (26) 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 255330816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (386121120).

255330816 is an abundant number, since it is smaller than the sum of its proper divisors (516911424).

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

255330816 is a wasteful number, since it uses less digits than its factorization.

255330816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726 (or 710 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 255330816 is about 15979.0743161173. The cubic root of 255330816 is about 634.4066758302.

The spelling of 255330816 in words is "two hundred fifty-five million, three hundred thirty thousand, eight hundred sixteen".