216016250 has 40 divisors (see below), whose sum is σ = 411683844. Its totient is φ = 84960000.

The previous prime is 216016243. The next prime is 216016289. The reversal of 216016250 is 52610612.

216016250 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 10 ways, for example, as 77035729 + 138980521 = 8777^2 + 11789^2 .

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 74834 + ... + 77666.

Almost surely, 2^216016250 is an apocalyptic number.

216016250 is a deficient number, since it is larger than the sum of its proper divisors (195667594).

216016250 is an equidigital number, since it uses as much as digits as its factorization.

216016250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2916 (or 2901 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 216016250 is about 14697.4912825285. The cubic root of 216016250 is about 600.0150459190.

Adding to 216016250 its reverse (52610612), we get a palindrome (268626862).

The spelling of 216016250 in words is "two hundred sixteen million, sixteen thousand, two hundred fifty".