423205225 has 24 divisors (see below), whose sum is σ = 558848160. Its totient is φ = 316811520.

The previous prime is 423205217. The next prime is 423205231. The reversal of 423205225 is 522502324.

It is a happy number.

It is not a de Polignac number, because 423205225 - 2³ = 423205217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 423205225.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73294 + ... + 78856.

It is an arithmetic number, because the mean of its divisors is an integer number (23285340).

Almost surely, 2^423205225 is an apocalyptic number.

It is an amenable number.

423205225 is a deficient number, since it is larger than the sum of its proper divisors (135642935).

423205225 is a wasteful number, since it uses less digits than its factorization.

423205225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5769 (or 5764 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 423205225 is about 20571.9523866842. The cubic root of 423205225 is about 750.7874544129.

Adding to 423205225 its reverse (522502324), we get a palindrome (945707549).

The spelling of 423205225 in words is "four hundred twenty-three million, two hundred five thousand, two hundred twenty-five".