422005425 has 24 divisors (see below), whose sum is σ = 698746944. Its totient is φ = 224736960.

The previous prime is 422005373. The next prime is 422005429. The reversal of 422005425 is 524500224.

It is a happy number.

It is not a de Polignac number, because 422005425 - 2¹² = 422001329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 422005395 and 422005404.

It is not an unprimeable number, because it can be changed into a prime (422005429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51939 + ... + 59511.

It is an arithmetic number, because the mean of its divisors is an integer number (29114456).

Almost surely, 2^422005425 is an apocalyptic number.

It is an amenable number.

422005425 is a deficient number, since it is larger than the sum of its proper divisors (276741519).

422005425 is a wasteful number, since it uses less digits than its factorization.

422005425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8329 (or 8324 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 422005425 is about 20542.7706261838. The cubic root of 422005425 is about 750.0772809255.

Adding to 422005425 its reverse (524500224), we get a palindrome (946505649).

The spelling of 422005425 in words is "four hundred twenty-two million, five thousand, four hundred twenty-five".