255915066 has 96 divisors (see below), whose sum is σ = 616232448. Its totient is φ = 70123680.

The previous prime is 255915031. The next prime is 255915067. The reversal of 255915066 is 660519552.

255915066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (255915067) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 547765 + ... + 548231.

It is an arithmetic number, because the mean of its divisors is an integer number (6419088).

Almost surely, 2^255915066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255915066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308116224).

255915066 is an abundant number, since it is smaller than the sum of its proper divisors (360317382).

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

255915066 is a wasteful number, since it uses less digits than its factorization.

255915066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544 (or 525 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 39.

The square root of 255915066 is about 15997.3455923162. The cubic root of 255915066 is about 634.8901920195.

The spelling of 255915066 in words is "two hundred fifty-five million, nine hundred fifteen thousand, sixty-six".