225402424 has 32 divisors (see below), whose sum is σ = 455908320. Its totient is φ = 103856256.

The previous prime is 225402421. The next prime is 225402427. The reversal of 225402424 is 424204522.

It is an interprime number because it is at equal distance from previous prime (225402421) and next prime (225402427).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225402421) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 75814 + ... + 78730.

It is an arithmetic number, because the mean of its divisors is an integer number (14247135).

Almost surely, 2^225402424 is an apocalyptic number.

It is an amenable number.

225402424 is an abundant number, since it is smaller than the sum of its proper divisors (230505896).

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

225402424 is a wasteful number, since it uses less digits than its factorization.

225402424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3679 (or 3675 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 225402424 is about 15013.4081407254. The cubic root of 225402424 is about 608.5825945604.

Adding to 225402424 its reverse (424204522), we get a palindrome (649606946).

It can be divided in two parts, 22540 and 2424, that added together give a square (24964 = 158²).

The spelling of 225402424 in words is "two hundred twenty-five million, four hundred two thousand, four hundred twenty-four".