65331233 has 16 divisors (see below), whose sum is σ = 74918976. Its totient is φ = 56427840.

The previous prime is 65331197. The next prime is 65331263. The reversal of 65331233 is 33213356.

It is a cyclic number.

It is not a de Polignac number, because 65331233 - 2⁶ = 65331169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65331263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15635 + ... + 19367.

It is an arithmetic number, because the mean of its divisors is an integer number (4682436).

Almost surely, 2^65331233 is an apocalyptic number.

It is an amenable number.

65331233 is a deficient number, since it is larger than the sum of its proper divisors (9587743).

65331233 is a wasteful number, since it uses less digits than its factorization.

65331233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3824.

The product of its digits is 4860, while the sum is 26.

The square root of 65331233 is about 8082.7738431803. The cubic root of 65331233 is about 402.7543918623.

Adding to 65331233 its reverse (33213356), we get a palindrome (98544589).

The spelling of 65331233 in words is "sixty-five million, three hundred thirty-one thousand, two hundred thirty-three".