422502257 has 2 divisors, whose sum is σ = 422502258. Its totient is φ = 422502256.

The previous prime is 422502211. The next prime is 422502293. The reversal of 422502257 is 752205224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 357361216 + 65141041 = 18904^2 + 8071^2 .

It is a cyclic number.

It is not a de Polignac number, because 422502257 - 2¹⁸ = 422240113 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (422507257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211251128 + 211251129.

It is an arithmetic number, because the mean of its divisors is an integer number (211251129).

Almost surely, 2^422502257 is an apocalyptic number.

It is an amenable number.

422502257 is a deficient number, since it is larger than the sum of its proper divisors (1).

422502257 is an equidigital number, since it uses as much as digits as its factorization.

422502257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 422502257 is about 20554.8596930264. The cubic root of 422502257 is about 750.3715237816.

The spelling of 422502257 in words is "four hundred twenty-two million, five hundred two thousand, two hundred fifty-seven".