4221255 has 16 divisors (see below), whose sum is σ = 6781824. Its totient is φ = 2242080.

The previous prime is 4221247. The next prime is 4221263. The reversal of 4221255 is 5521224.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4221247) and next prime (4221263).

It is not a de Polignac number, because 4221255 - 2³ = 4221247 is a prime.

It is a d-powerful number, because it can be written as 4 + 2² + 2¹³ + 1 + 2²² + 5⁵ + 5⁶ .

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, 4800 + ... + 5610.

It is an arithmetic number, because the mean of its divisors is an integer number (423864).

Almost surely, 2^4221255 is an apocalyptic number.

4221255 is a deficient number, since it is larger than the sum of its proper divisors (2560569).

4221255 is a wasteful number, since it uses less digits than its factorization.

4221255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166.

The product of its digits is 800, while the sum is 21.

The square root of 4221255 is about 2054.5692979308. The cubic root of 4221255 is about 161.6145768106.

Adding to 4221255 its reverse (5521224), we get a palindrome (9742479).

The spelling of 4221255 in words is "four million, two hundred twenty-one thousand, two hundred fifty-five".