280255 has 8 divisors (see below), whose sum is σ = 351072. Its totient is φ = 214368.

The previous prime is 280253. The next prime is 280277. The reversal of 280255 is 552082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 280255 - 2¹ = 280253 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1104 + ... + 1333.

It is an arithmetic number, because the mean of its divisors is an integer number (43884).

2²⁸⁰²⁵⁵ is an apocalyptic number.

280255 is a deficient number, since it is larger than the sum of its proper divisors (70817).

280255 is a wasteful number, since it uses less digits than its factorization.

280255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2465.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 280255 is about 529.3911597297. The cubic root of 280255 is about 65.4411802233.

It can be divided in two parts, 280 and 255, that added together give a palindrome (535).

The spelling of 280255 in words is "two hundred eighty thousand, two hundred fifty-five".