65213333 has 4 divisors (see below), whose sum is σ = 65604000. Its totient is φ = 64822668.

The previous prime is 65213297. The next prime is 65213341. The reversal of 65213333 is 33331256.

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 65213333 - 2¹⁸ = 64951189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65213363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195083 + ... + 195416.

It is an arithmetic number, because the mean of its divisors is an integer number (16401000).

Almost surely, 2^65213333 is an apocalyptic number.

It is an amenable number.

65213333 is a deficient number, since it is larger than the sum of its proper divisors (390667).

65213333 is a wasteful number, since it uses less digits than its factorization.

65213333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390666.

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

The square root of 65213333 is about 8075.4772614379. The cubic root of 65213333 is about 402.5119690897.

Adding to 65213333 its reverse (33331256), we get a palindrome (98544589).

The spelling of 65213333 in words is "sixty-five million, two hundred thirteen thousand, three hundred thirty-three".