216850255 has 16 divisors (see below), whose sum is σ = 269661600. Its totient is φ = 167207040.

The previous prime is 216850253. The next prime is 216850273. The reversal of 216850255 is 552058612.

It is not a de Polignac number, because 216850255 - 2¹ = 216850253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 216850255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216850253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123685 + ... + 125425.

It is an arithmetic number, because the mean of its divisors is an integer number (16853850).

Almost surely, 2^216850255 is an apocalyptic number.

216850255 is a deficient number, since it is larger than the sum of its proper divisors (52811345).

216850255 is a wasteful number, since it uses less digits than its factorization.

216850255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2634.

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 216850255 is about 14725.8363090182. The cubic root of 216850255 is about 600.7862424029.

The spelling of 216850255 in words is "two hundred sixteen million, eight hundred fifty thousand, two hundred fifty-five".