225530436 has 12 divisors (see below), whose sum is σ = 526237712. Its totient is φ = 75176808.

The previous prime is 225530413. The next prime is 225530441. The reversal of 225530436 is 634035522.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9397090 + ... + 9397113.

Almost surely, 2^225530436 is an apocalyptic number.

It is an amenable number.

225530436 is an abundant number, since it is smaller than the sum of its proper divisors (300707276).

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

225530436 is a wasteful number, since it uses less digits than its factorization.

225530436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18794210 (or 18794208 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 225530436 is about 15017.6707914377. The cubic root of 225530436 is about 608.6977828092.

Adding to 225530436 its reverse (634035522), we get a palindrome (859565958).

The spelling of 225530436 in words is "two hundred twenty-five million, five hundred thirty thousand, four hundred thirty-six".