65324513 has 4 divisors (see below), whose sum is σ = 65345328. Its totient is φ = 65303700.

The previous prime is 65324503. The next prime is 65324549. The reversal of 65324513 is 31542356.

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 65324513 - 2⁸ = 65324257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65324503) 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, 4631 + ... + 12332.

It is an arithmetic number, because the mean of its divisors is an integer number (16336332).

Almost surely, 2^65324513 is an apocalyptic number.

It is an amenable number.

65324513 is a deficient number, since it is larger than the sum of its proper divisors (20815).

65324513 is a wasteful number, since it uses less digits than its factorization.

65324513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20814.

The product of its digits is 10800, while the sum is 29.

The square root of 65324513 is about 8082.3581336142. The cubic root of 65324513 is about 402.7405822228.

Adding to 65324513 its reverse (31542356), we get a palindrome (96866869).

The spelling of 65324513 in words is "sixty-five million, three hundred twenty-four thousand, five hundred thirteen".