225522030 has 32 divisors (see below), whose sum is σ = 555884064. Its totient is φ = 58513536.

The previous prime is 225522029. The next prime is 225522053. The reversal of 225522030 is 30225522.

It is a junction number, because it is equal to n+sod(n) for n = 225521988 and 225522006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100477 + ... + 102696.

It is an arithmetic number, because the mean of its divisors is an integer number (17371377).

Almost surely, 2^225522030 is an apocalyptic number.

225522030 is an abundant number, since it is smaller than the sum of its proper divisors (330362034).

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

225522030 is a wasteful number, since it uses less digits than its factorization.

225522030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203220.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 225522030 is about 15017.3909185318. The cubic root of 225522030 is about 608.6902202273.

Adding to 225522030 its reverse (30225522), we get a palindrome (255747552).

The spelling of 225522030 in words is "two hundred twenty-five million, five hundred twenty-two thousand, thirty".