4000255 has 16 divisors (see below), whose sum is σ = 5636160. Its totient is φ = 2668032.

The previous prime is 4000237. The next prime is 4000261. The reversal of 4000255 is 5520004.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 4000255 - 2¹⁵ = 3967487 is a prime.

4000255 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250 + ... + 2839.

It is an arithmetic number, because the mean of its divisors is an integer number (352260).

Almost surely, 2^4000255 is an apocalyptic number.

4000255 is a deficient number, since it is larger than the sum of its proper divisors (1635905).

4000255 is a wasteful number, since it uses less digits than its factorization.

4000255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3138.

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 4000255 is about 2000.0637489840. The cubic root of 4000255 is about 158.7434783524.

Adding to 4000255 its reverse (5520004), we get a palindrome (9520259).

The spelling of 4000255 in words is "four million, two hundred fifty-five", and thus it is an aban number.