255804486 has 64 divisors (see below), whose sum is σ = 620421120. Its totient is φ = 68683680.

The previous prime is 255804473. The next prime is 255804499. The reversal of 255804486 is 684408552.

255804486 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (255804473) and next prime (255804499).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

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, 103315 + ... + 105761.

It is an arithmetic number, because the mean of its divisors is an integer number (9694080).

Almost surely, 2^255804486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255804486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310210560).

255804486 is an abundant number, since it is smaller than the sum of its proper divisors (364616634).

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

255804486 is a wasteful number, since it uses less digits than its factorization.

255804486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2609.

The product of its (nonzero) digits is 307200, while the sum is 42.

The square root of 255804486 is about 15993.8890204978. The cubic root of 255804486 is about 634.7987342390.

The spelling of 255804486 in words is "two hundred fifty-five million, eight hundred four thousand, four hundred eighty-six".