65506313 has 4 divisors (see below), whose sum is σ = 65695440. Its totient is φ = 65317188.

The previous prime is 65506307. The next prime is 65506349. The reversal of 65506313 is 31360556.

65506313 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 a de Polignac number, because none of the positive numbers 2^k-65506313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65506513) 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, 94043 + ... + 94736.

It is an arithmetic number, because the mean of its divisors is an integer number (16423860).

Almost surely, 2^65506313 is an apocalyptic number.

It is an amenable number.

65506313 is a deficient number, since it is larger than the sum of its proper divisors (189127).

65506313 is a wasteful number, since it uses less digits than its factorization.

65506313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189126.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 65506313 is about 8093.5970371646. The cubic root of 65506313 is about 403.1138490436.

Adding to 65506313 its reverse (31360556), we get a palindrome (96866869).

The spelling of 65506313 in words is "sixty-five million, five hundred six thousand, three hundred thirteen".