225305430 has 48 divisors (see below), whose sum is σ = 629020080. Its totient is φ = 51498048.

The previous prime is 225305419. The next prime is 225305441. The reversal of 225305430 is 34503522.

It is an interprime number because it is at equal distance from previous prime (225305419) and next prime (225305441).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 225305430.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75165 + ... + 78104.

It is an arithmetic number, because the mean of its divisors is an integer number (13104585).

Almost surely, 2^225305430 is an apocalyptic number.

225305430 is an abundant number, since it is smaller than the sum of its proper divisors (403714650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225305430 is a wasteful number, since it uses less digits than its factorization.

225305430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153293 (or 153286 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 225305430 is about 15010.1775472511. The cubic root of 225305430 is about 608.4952880027.

Adding to 225305430 its reverse (34503522), we get a palindrome (259808952).

The spelling of 225305430 in words is "two hundred twenty-five million, three hundred five thousand, four hundred thirty".