650499589 has 2 divisors, whose sum is σ = 650499590. Its totient is φ = 650499588.

The previous prime is 650499539. The next prime is 650499607. The reversal of 650499589 is 985994056.

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., 557762689 + 92736900 = 23617^2 + 9630^2 .

It is a cyclic number.

It is not a de Polignac number, because 650499589 - 2¹³ = 650491397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (650499539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325249794 + 325249795.

It is an arithmetic number, because the mean of its divisors is an integer number (325249795).

Almost surely, 2^650499589 is an apocalyptic number.

It is an amenable number.

650499589 is a deficient number, since it is larger than the sum of its proper divisors (1).

650499589 is an equidigital number, since it uses as much as digits as its factorization.

650499589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3499200, while the sum is 55.

The square root of 650499589 is about 25504.8934324376. The cubic root of 650499589 is about 866.4609785214.

The spelling of 650499589 in words is "six hundred fifty million, four hundred ninety-nine thousand, five hundred eighty-nine".