216255033 has 12 divisors (see below), whose sum is σ = 319987668. Its totient is φ = 140653440.

The previous prime is 216255023. The next prime is 216255049. The reversal of 216255033 is 330552612.

216255033 is a `hidden beast` number, since 2 + 1 + 625 + 5 + 0 + 33 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 29030544 + 187224489 = 5388^2 + 13683^2 .

It is not a de Polignac number, because 216255033 - 2⁸ = 216254777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 216254988 and 216255006.

It is not an unprimeable number, because it can be changed into a prime (216255023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 292660 + ... + 293397.

It is an arithmetic number, because the mean of its divisors is an integer number (26665639).

Almost surely, 2^216255033 is an apocalyptic number.

It is an amenable number.

216255033 is a deficient number, since it is larger than the sum of its proper divisors (103732635).

216255033 is a wasteful number, since it uses less digits than its factorization.

216255033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586104 (or 586101 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 216255033 is about 14705.6122959909. The cubic root of 216255033 is about 600.2360487894.

The spelling of 216255033 in words is "two hundred sixteen million, two hundred fifty-five thousand, thirty-three".