650530609 has 2 divisors, whose sum is σ = 650530610. Its totient is φ = 650530608.

The previous prime is 650530603. The next prime is 650530681. The reversal of 650530609 is 906035056.

650530609 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., 622652209 + 27878400 = 24953^2 + 5280^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-650530609 is a prime.

It is not a weakly prime, because it can be changed into another prime (650530603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325265304 + 325265305.

It is an arithmetic number, because the mean of its divisors is an integer number (325265305).

Almost surely, 2^650530609 is an apocalyptic number.

It is an amenable number.

650530609 is a deficient number, since it is larger than the sum of its proper divisors (1).

650530609 is an equidigital number, since it uses as much as digits as its factorization.

650530609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24300, while the sum is 34.

The square root of 650530609 is about 25505.5015437846. The cubic root of 650530609 is about 866.4747511113.

The spelling of 650530609 in words is "six hundred fifty million, five hundred thirty thousand, six hundred nine".