290255 has 8 divisors (see below), whose sum is σ = 398112. Its totient is φ = 199008.

The previous prime is 290249. The next prime is 290317. The reversal of 290255 is 552092.

It is a happy number.

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 290255 - 2⁸ = 289999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 290255.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 290255.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4112 + ... + 4181.

It is an arithmetic number, because the mean of its divisors is an integer number (49764).

2²⁹⁰²⁵⁵ is an apocalyptic number.

290255 is a deficient number, since it is larger than the sum of its proper divisors (107857).

290255 is an equidigital number, since it uses as much as digits as its factorization.

290255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8305.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 290255 is about 538.7531902458. The cubic root of 290255 is about 66.2104546244.

It can be divided in two parts, 290 and 255, that added together give a palindrome (545).

The spelling of 290255 in words is "two hundred ninety thousand, two hundred fifty-five".