650649611 has 2 divisors, whose sum is σ = 650649612. Its totient is φ = 650649610.

The previous prime is 650649589. The next prime is 650649613. The reversal of 650649611 is 116946056.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-650649611 is a prime.

Together with 650649613, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (650649613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325324805 + 325324806.

It is an arithmetic number, because the mean of its divisors is an integer number (325324806).

Almost surely, 2^650649611 is an apocalyptic number.

650649611 is a deficient number, since it is larger than the sum of its proper divisors (1).

650649611 is an equidigital number, since it uses as much as digits as its factorization.

650649611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 650649611 is about 25507.8343063460. The cubic root of 650649611 is about 866.5275828255.

The spelling of 650649611 in words is "six hundred fifty million, six hundred forty-nine thousand, six hundred eleven".