650543461 has 2 divisors, whose sum is σ = 650543462. Its totient is φ = 650543460.

The previous prime is 650543441. The next prime is 650543483. The reversal of 650543461 is 164345056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 644855236 + 5688225 = 25394^2 + 2385^2 .

It is a cyclic number.

It is not a de Polignac number, because 650543461 - 2¹¹ = 650541413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (650543441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325271730 + 325271731.

It is an arithmetic number, because the mean of its divisors is an integer number (325271731).

Almost surely, 2^650543461 is an apocalyptic number.

It is an amenable number.

650543461 is a deficient number, since it is larger than the sum of its proper divisors (1).

650543461 is an equidigital number, since it uses as much as digits as its factorization.

650543461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 650543461 is about 25505.7534881838. The cubic root of 650543461 is about 866.4804571509.

The spelling of 650543461 in words is "six hundred fifty million, five hundred forty-three thousand, four hundred sixty-one".