650306441 has 2 divisors, whose sum is σ = 650306442. Its totient is φ = 650306440.

The previous prime is 650306387. The next prime is 650306443. The reversal of 650306441 is 144603056.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 539214841 + 111091600 = 23221^2 + 10540^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-650306441 is a prime.

It is a Sophie Germain prime.

Together with 650306443, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (650306443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325153220 + 325153221.

It is an arithmetic number, because the mean of its divisors is an integer number (325153221).

Almost surely, 2^650306441 is an apocalyptic number.

It is an amenable number.

650306441 is a deficient number, since it is larger than the sum of its proper divisors (1).

650306441 is an equidigital number, since it uses as much as digits as its factorization.

650306441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 650306441 is about 25501.1066622608. The cubic root of 650306441 is about 866.3752127630.

Adding to 650306441 its reverse (144603056), we get a palindrome (794909497).

The spelling of 650306441 in words is "six hundred fifty million, three hundred six thousand, four hundred forty-one".