225641424 has 20 divisors (see below), whose sum is σ = 582907136. Its totient is φ = 75213792.

The previous prime is 225641419. The next prime is 225641441. The reversal of 225641424 is 424146522.

It is a junction number, because it is equal to n+sod(n) for n = 225641391 and 225641400.

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 3 ways as a sum of consecutive naturals, for example, 2350384 + ... + 2350479.

Almost surely, 2^225641424 is an apocalyptic number.

225641424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

225641424 is an abundant number, since it is smaller than the sum of its proper divisors (357265712).

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

225641424 is a wasteful number, since it uses less digits than its factorization.

225641424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4700874 (or 4700868 counting only the distinct ones).

The product of its digits is 15360, while the sum is 30.

The square root of 225641424 is about 15021.3655837277. The cubic root of 225641424 is about 608.7976171841.

Adding to 225641424 its reverse (424146522), we get a palindrome (649787946).

The spelling of 225641424 in words is "two hundred twenty-five million, six hundred forty-one thousand, four hundred twenty-four".