65216033 has 4 divisors (see below), whose sum is σ = 67319808. Its totient is φ = 63112260.

The previous prime is 65216027. The next prime is 65216057. The reversal of 65216033 is 33061256.

65216033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65216033 - 2¹⁴ = 65199649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65215993 and 65216011.

It is not an unprimeable number, because it can be changed into a prime (65218033) 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 3 ways as a sum of consecutive naturals, for example, 1051841 + ... + 1051902.

It is an arithmetic number, because the mean of its divisors is an integer number (16829952).

Almost surely, 2^65216033 is an apocalyptic number.

It is an amenable number.

65216033 is a deficient number, since it is larger than the sum of its proper divisors (2103775).

65216033 is a wasteful number, since it uses less digits than its factorization.

65216033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103774.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 65216033 is about 8075.6444324896. The cubic root of 65216033 is about 402.5175240239.

Adding to 65216033 its reverse (33061256), we get a palindrome (98277289).

The spelling of 65216033 in words is "sixty-five million, two hundred sixteen thousand, thirty-three".