650256387233 has 2 divisors, whose sum is σ = 650256387234. Its totient is φ = 650256387232.

The previous prime is 650256387229. The next prime is 650256387259. The reversal of 650256387233 is 332783652056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 376274281744 + 273982105489 = 613412^2 + 523433^2 .

It is a cyclic number.

It is not a de Polignac number, because 650256387233 - 2² = 650256387229 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (650256887233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325128193616 + 325128193617.

It is an arithmetic number, because the mean of its divisors is an integer number (325128193617).

Almost surely, 2^650256387233 is an apocalyptic number.

It is an amenable number.

650256387233 is a deficient number, since it is larger than the sum of its proper divisors (1).

650256387233 is an equidigital number, since it uses as much as digits as its factorization.

650256387233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5443200, while the sum is 50.

The spelling of 650256387233 in words is "six hundred fifty billion, two hundred fifty-six million, three hundred eighty-seven thousand, two hundred thirty-three".