65003218 has 32 divisors (see below), whose sum is σ = 121098240. Its totient is φ = 25537680.

The previous prime is 65003207. The next prime is 65003219. The reversal of 65003218 is 81230056.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 65003192 and 65003201.

It is not an unprimeable number, because it can be changed into a prime (65003219) 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, 4305 + ... + 12187.

It is an arithmetic number, because the mean of its divisors is an integer number (3784320).

Almost surely, 2^65003218 is an apocalyptic number.

65003218 is a deficient number, since it is larger than the sum of its proper divisors (56095022).

65003218 is a wasteful number, since it uses less digits than its factorization.

65003218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7942.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 65003218 is about 8062.4573177165. The cubic root of 65003218 is about 402.0792109779.

The spelling of 65003218 in words is "sixty-five million, three thousand, two hundred eighteen".