622255217 has 2 divisors, whose sum is σ = 622255218. Its totient is φ = 622255216.

The previous prime is 622255211. The next prime is 622255229. The reversal of 622255217 is 712552226.

622255217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 514427761 + 107827456 = 22681^2 + 10384^2 .

It is a cyclic number.

It is not a de Polignac number, because 622255217 - 2⁴ = 622255201 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (622255211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311127608 + 311127609.

It is an arithmetic number, because the mean of its divisors is an integer number (311127609).

Almost surely, 2^622255217 is an apocalyptic number.

It is an amenable number.

622255217 is a deficient number, since it is larger than the sum of its proper divisors (1).

622255217 is an equidigital number, since it uses as much as digits as its factorization.

622255217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16800, while the sum is 32.

The square root of 622255217 is about 24945.0439366220. The cubic root of 622255217 is about 853.7345332101.

The spelling of 622255217 in words is "six hundred twenty-two million, two hundred fifty-five thousand, two hundred seventeen".