650656493 has 2 divisors, whose sum is σ = 650656494. Its totient is φ = 650656492.

The previous prime is 650656481. The next prime is 650656529. The reversal of 650656493 is 394656056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 356945449 + 293711044 = 18893^2 + 17138^2 .

It is a cyclic number.

It is not a de Polignac number, because 650656493 - 2¹⁶ = 650590957 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (650616493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325328246 + 325328247.

It is an arithmetic number, because the mean of its divisors is an integer number (325328247).

Almost surely, 2^650656493 is an apocalyptic number.

It is an amenable number.

650656493 is a deficient number, since it is larger than the sum of its proper divisors (1).

650656493 is an equidigital number, since it uses as much as digits as its factorization.

650656493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 583200, while the sum is 44.

The square root of 650656493 is about 25507.9692057208. The cubic root of 650656493 is about 866.5306379372.

The spelling of 650656493 in words is "six hundred fifty million, six hundred fifty-six thousand, four hundred ninety-three".