3216255 has 16 divisors (see below), whose sum is σ = 5881344. Its totient is φ = 1470240.

The previous prime is 3216233. The next prime is 3216259. The reversal of 3216255 is 5526123.

3216255 = T₁₆₀ + T₁₆₁ + ... + T₂₈₅.

It is not a de Polignac number, because 3216255 - 2⁷ = 3216127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3216259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15211 + ... + 15420.

It is an arithmetic number, because the mean of its divisors is an integer number (367584).

Almost surely, 2^3216255 is an apocalyptic number.

3216255 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3216255 is a deficient number, since it is larger than the sum of its proper divisors (2665089).

3216255 is a wasteful number, since it uses less digits than its factorization.

3216255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30646.

The product of its digits is 1800, while the sum is 24.

The square root of 3216255 is about 1793.3920374530. The cubic root of 3216255 is about 147.6103550288.

The spelling of 3216255 in words is "three million, two hundred sixteen thousand, two hundred fifty-five".