850320563 has 2 divisors, whose sum is σ = 850320564. Its totient is φ = 850320562.

The previous prime is 850320553. The next prime is 850320589. The reversal of 850320563 is 365023058.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 850320563 - 2¹⁴ = 850304179 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (850320553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425160281 + 425160282.

It is an arithmetic number, because the mean of its divisors is an integer number (425160282).

Almost surely, 2^850320563 is an apocalyptic number.

850320563 is a deficient number, since it is larger than the sum of its proper divisors (1).

850320563 is an equidigital number, since it uses as much as digits as its factorization.

850320563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 850320563 is about 29160.2565660867. The cubic root of 850320563 is about 947.3873042379.

The spelling of 850320563 in words is "eight hundred fifty million, three hundred twenty thousand, five hundred sixty-three".