65215259 has 2 divisors, whose sum is σ = 65215260. Its totient is φ = 65215258.

The previous prime is 65215243. The next prime is 65215301. The reversal of 65215259 is 95251256.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65215259 - 2⁴ = 65215243 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65235259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32607629 + 32607630.

It is an arithmetic number, because the mean of its divisors is an integer number (32607630).

Almost surely, 2^65215259 is an apocalyptic number.

65215259 is a deficient number, since it is larger than the sum of its proper divisors (1).

65215259 is an equidigital number, since it uses as much as digits as its factorization.

65215259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27000, while the sum is 35.

The square root of 65215259 is about 8075.5965104752. The cubic root of 65215259 is about 402.5159316251.

The spelling of 65215259 in words is "sixty-five million, two hundred fifteen thousand, two hundred fifty-nine".