65050009 has 2 divisors, whose sum is σ = 65050010. Its totient is φ = 65050008.

The previous prime is 65049989. The next prime is 65050019. The reversal of 65050009 is 90005056.

It is a happy number.

65050009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43520409 + 21529600 = 6597^2 + 4640^2 .

It is a cyclic number.

It is not a de Polignac number, because 65050009 - 2¹⁵ = 65017241 is a prime.

It is not a weakly prime, because it can be changed into another prime (65050019) 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, 32525004 + 32525005.

It is an arithmetic number, because the mean of its divisors is an integer number (32525005).

Almost surely, 2^65050009 is an apocalyptic number.

It is an amenable number.

65050009 is a deficient number, since it is larger than the sum of its proper divisors (1).

65050009 is an equidigital number, since it uses as much as digits as its factorization.

65050009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 65050009 is about 8065.3585785134. The cubic root of 65050009 is about 402.1756635154.

The spelling of 65050009 in words is "sixty-five million, fifty thousand, nine".