65216235 has 32 divisors (see below), whose sum is σ = 121512960. Its totient is φ = 29248128.

The previous prime is 65216209. The next prime is 65216297. The reversal of 65216235 is 53261256.

It is not a de Polignac number, because 65216235 - 2¹⁶ = 65150699 is a prime.

It is a super-3 number, since 3×65216235³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 295 + ... + 11424.

It is an arithmetic number, because the mean of its divisors is an integer number (3797280).

Almost surely, 2^65216235 is an apocalyptic number.

65216235 is a deficient number, since it is larger than the sum of its proper divisors (56296725).

65216235 is a wasteful number, since it uses less digits than its factorization.

65216235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11787.

The product of its digits is 10800, while the sum is 30.

The square root of 65216235 is about 8075.6569392217. The cubic root of 65216235 is about 402.5179396091.

The spelling of 65216235 in words is "sixty-five million, two hundred sixteen thousand, two hundred thirty-five".