65116529 has 2 divisors, whose sum is σ = 65116530. Its totient is φ = 65116528.

The previous prime is 65116517. The next prime is 65116531. The reversal of 65116529 is 92561156.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60031504 + 5085025 = 7748^2 + 2255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65116529 is a prime.

Together with 65116531, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65116549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32558264 + 32558265.

It is an arithmetic number, because the mean of its divisors is an integer number (32558265).

Almost surely, 2^65116529 is an apocalyptic number.

It is an amenable number.

65116529 is a deficient number, since it is larger than the sum of its proper divisors (1).

65116529 is an equidigital number, since it uses as much as digits as its factorization.

65116529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 35.

The square root of 65116529 is about 8069.4813340140. The cubic root of 65116529 is about 402.3127048043.

The spelling of 65116529 in words is "sixty-five million, one hundred sixteen thousand, five hundred twenty-nine".