422252225 has 6 divisors (see below), whose sum is σ = 523592790. Its totient is φ = 337801760.

The previous prime is 422252213. The next prime is 422252227. The reversal of 422252225 is 522252224.

It can be written as a sum of positive squares in 3 ways, for example, as 124724224 + 297528001 = 11168^2 + 17249^2 .

It is not a de Polignac number, because 422252225 - 2⁶ = 422252161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 422252194 and 422252203.

It is not an unprimeable number, because it can be changed into a prime (422252227) 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 in 5 ways as a sum of consecutive naturals, for example, 8445020 + ... + 8445069.

It is an arithmetic number, because the mean of its divisors is an integer number (87265465).

Almost surely, 2^422252225 is an apocalyptic number.

It is an amenable number.

422252225 is a deficient number, since it is larger than the sum of its proper divisors (101340565).

422252225 is a wasteful number, since it uses less digits than its factorization.

422252225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16890099 (or 16890094 counting only the distinct ones).

The product of its digits is 6400, while the sum is 26.

The square root of 422252225 is about 20548.7767275816. The cubic root of 422252225 is about 750.2234741465.

Subtracting 422252225 from its reverse (522252224), we obtain a palindrome (99999999).

The spelling of 422252225 in words is "four hundred twenty-two million, two hundred fifty-two thousand, two hundred twenty-five".