65015513 has 2 divisors, whose sum is σ = 65015514. Its totient is φ = 65015512.

The previous prime is 65015507. The next prime is 65015521. The reversal of 65015513 is 31551056.

65015513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61889689 + 3125824 = 7867^2 + 1768^2 .

It is a cyclic number.

It is not a de Polignac number, because 65015513 - 2²⁴ = 48238297 is a prime.

It is not a weakly prime, because it can be changed into another prime (65015563) 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 as a sum of consecutive naturals, namely, 32507756 + 32507757.

It is an arithmetic number, because the mean of its divisors is an integer number (32507757).

Almost surely, 2^65015513 is an apocalyptic number.

It is an amenable number.

65015513 is a deficient number, since it is larger than the sum of its proper divisors (1).

65015513 is an equidigital number, since it uses as much as digits as its factorization.

65015513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 65015513 is about 8063.2197663216. The cubic root of 65015513 is about 402.1045597344.

Adding to 65015513 its reverse (31551056), we get a palindrome (96566569).

The spelling of 65015513 in words is "sixty-five million, fifteen thousand, five hundred thirteen".