255458816 has 40 divisors (see below), whose sum is σ = 513717864. Its totient is φ = 126904320.

The previous prime is 255458803. The next prime is 255458839. The reversal of 255458816 is 618854552.

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 3 ways as a sum of consecutive naturals, for example, 81926 + ... + 84986.

Almost surely, 2^255458816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255458816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256858932).

255458816 is an abundant number, since it is smaller than the sum of its proper divisors (258259048).

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

255458816 is an equidigital number, since it uses as much as digits as its factorization.

255458816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3242 (or 3226 counting only the distinct ones).

The product of its digits is 384000, while the sum is 44.

The square root of 255458816 is about 15983.0790525480. The cubic root of 255458816 is about 634.5126696804.

The spelling of 255458816 in words is "two hundred fifty-five million, four hundred fifty-eight thousand, eight hundred sixteen".