423502225 has 12 divisors (see below), whose sum is σ = 543252060. Its totient is φ = 327118400.

The previous prime is 423502223. The next prime is 423502231. The reversal of 423502225 is 522205324.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 4112784 + 419389441 = 2028^2 + 20479^2 .

It is not a de Polignac number, because 423502225 - 2¹ = 423502223 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 423502225.

It is not an unprimeable number, because it can be changed into a prime (423502223) 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 11 ways as a sum of consecutive naturals, for example, 291346 + ... + 292795.

It is an arithmetic number, because the mean of its divisors is an integer number (45271005).

Almost surely, 2^423502225 is an apocalyptic number.

It is an amenable number.

423502225 is a deficient number, since it is larger than the sum of its proper divisors (119749835).

423502225 is a wasteful number, since it uses less digits than its factorization.

423502225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584180 (or 584175 counting only the distinct ones).

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

The square root of 423502225 is about 20579.1696868460. The cubic root of 423502225 is about 750.9630443463.

Adding to 423502225 its reverse (522205324), we get a palindrome (945707549).

The spelling of 423502225 in words is "four hundred twenty-three million, five hundred two thousand, two hundred twenty-five".