422655269 has 2 divisors, whose sum is σ = 422655270. Its totient is φ = 422655268.

The previous prime is 422655253. The next prime is 422655301. The reversal of 422655269 is 962556224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 344102500 + 78552769 = 18550^2 + 8863^2 .

It is a cyclic number.

It is not a de Polignac number, because 422655269 - 2⁴ = 422655253 is a prime.

It is a super-2 number, since 2×422655269² = 357274952826924722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422655169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211327634 + 211327635.

It is an arithmetic number, because the mean of its divisors is an integer number (211327635).

Almost surely, 2^422655269 is an apocalyptic number.

It is an amenable number.

422655269 is a deficient number, since it is larger than the sum of its proper divisors (1).

422655269 is an equidigital number, since it uses as much as digits as its factorization.

422655269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 41.

The square root of 422655269 is about 20558.5813956119. The cubic root of 422655269 is about 750.4620968598.

It can be divided in two parts, 4226 and 55269, that added together give a palindrome (59495).

The spelling of 422655269 in words is "four hundred twenty-two million, six hundred fifty-five thousand, two hundred sixty-nine".