225544404 has 24 divisors (see below), whose sum is σ = 529503520. Its totient is φ = 74719584.

The previous prime is 225544387. The next prime is 225544427. The reversal of 225544404 is 404445522.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 55699 + ... + 59610.

Almost surely, 2^225544404 is an apocalyptic number.

It is an amenable number.

225544404 is an abundant number, since it is smaller than the sum of its proper divisors (303959116).

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

225544404 is a wasteful number, since it uses less digits than its factorization.

225544404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115479 (or 115477 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 30.

The square root of 225544404 is about 15018.1358363813. The cubic root of 225544404 is about 608.7103489108.

Adding to 225544404 its reverse (404445522), we get a palindrome (629989926).

The spelling of 225544404 in words is "two hundred twenty-five million, five hundred forty-four thousand, four hundred four".