225543144 has 32 divisors (see below), whose sum is σ = 571803840. Its totient is φ = 74121600.

The previous prime is 225543137. The next prime is 225543161. The reversal of 225543144 is 441345522.

225543144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64477 + ... + 67884.

It is an arithmetic number, because the mean of its divisors is an integer number (17868870).

Almost surely, 2^225543144 is an apocalyptic number.

225543144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

225543144 is an abundant number, since it is smaller than the sum of its proper divisors (346260696).

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

225543144 is a wasteful number, since it uses less digits than its factorization.

225543144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132441 (or 132437 counting only the distinct ones).

The product of its digits is 19200, while the sum is 30.

The square root of 225543144 is about 15018.0938870417. The cubic root of 225543144 is about 608.7092153919.

Adding to 225543144 its reverse (441345522), we get a palindrome (666888666).

The spelling of 225543144 in words is "two hundred twenty-five million, five hundred forty-three thousand, one hundred forty-four".