225544424 has 16 divisors (see below), whose sum is σ = 483309600. Its totient is φ = 96661872.

The previous prime is 225544387. The next prime is 225544427. The reversal of 225544424 is 424445522.

It is not an unprimeable number, because it can be changed into a prime (225544427) 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 3 ways as a sum of consecutive naturals, for example, 2013734 + ... + 2013845.

It is an arithmetic number, because the mean of its divisors is an integer number (30206850).

Almost surely, 2^225544424 is an apocalyptic number.

It is an amenable number.

225544424 is an abundant number, since it is smaller than the sum of its proper divisors (257765176).

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

225544424 is a wasteful number, since it uses less digits than its factorization.

225544424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4027592 (or 4027588 counting only the distinct ones).

The product of its digits is 51200, while the sum is 32.

The square root of 225544424 is about 15018.1365022429. The cubic root of 225544424 is about 608.7103669031.

Adding to 225544424 its reverse (424445522), we get a palindrome (649989946).

The spelling of 225544424 in words is "two hundred twenty-five million, five hundred forty-four thousand, four hundred twenty-four".