650772497 has 2 divisors, whose sum is σ = 650772498. Its totient is φ = 650772496.

The previous prime is 650772487. The next prime is 650772509. The reversal of 650772497 is 794277056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 363436096 + 287336401 = 19064^2 + 16951^2 .

It is a cyclic number.

It is not a de Polignac number, because 650772497 - 2⁶ = 650772433 is a prime.

It is not a weakly prime, because it can be changed into another prime (650772457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325386248 + 325386249.

It is an arithmetic number, because the mean of its divisors is an integer number (325386249).

Almost surely, 2^650772497 is an apocalyptic number.

It is an amenable number.

650772497 is a deficient number, since it is larger than the sum of its proper divisors (1).

650772497 is an equidigital number, since it uses as much as digits as its factorization.

650772497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 740880, while the sum is 47.

The square root of 650772497 is about 25510.2429819867. The cubic root of 650772497 is about 866.5821321065.

The spelling of 650772497 in words is "six hundred fifty million, seven hundred seventy-two thousand, four hundred ninety-seven".