65266319 has 2 divisors, whose sum is σ = 65266320. Its totient is φ = 65266318.

The previous prime is 65266291. The next prime is 65266339. The reversal of 65266319 is 91366256.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65266319 - 2⁸ = 65266063 is a prime.

It is a super-2 number, since 2×65266319² = 8519384791619522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65266339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32633159 + 32633160.

It is an arithmetic number, because the mean of its divisors is an integer number (32633160).

Almost surely, 2^65266319 is an apocalyptic number.

65266319 is a deficient number, since it is larger than the sum of its proper divisors (1).

65266319 is an equidigital number, since it uses as much as digits as its factorization.

65266319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 38.

The square root of 65266319 is about 8078.7572682932. The cubic root of 65266319 is about 402.6209535801.

The spelling of 65266319 in words is "sixty-five million, two hundred sixty-six thousand, three hundred nineteen".