422606225 has 6 divisors (see below), whose sum is σ = 524031750. Its totient is φ = 338084960.

The previous prime is 422606161. The next prime is 422606293. The reversal of 422606225 is 522606224.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 122589184 + 300017041 = 11072^2 + 17321^2 .

It is not a de Polignac number, because 422606225 - 2⁶ = 422606161 is a prime.

It is an unprimeable number.

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, 8452100 + ... + 8452149.

It is an arithmetic number, because the mean of its divisors is an integer number (87338625).

Almost surely, 2^422606225 is an apocalyptic number.

It is an amenable number.

422606225 is a deficient number, since it is larger than the sum of its proper divisors (101425525).

422606225 is a wasteful number, since it uses less digits than its factorization.

422606225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16904259 (or 16904254 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 422606225 is about 20557.3885744274. The cubic root of 422606225 is about 750.4330684061.

Subtracting 422606225 from its reverse (522606224), we obtain a palindrome (99999999).

The spelling of 422606225 in words is "four hundred twenty-two million, six hundred six thousand, two hundred twenty-five".