225544432 has 20 divisors (see below), whose sum is σ = 439262560. Its totient is φ = 112186368.

The previous prime is 225544427. The next prime is 225544439. The reversal of 225544432 is 234445522.

It is a junction number, because it is equal to n+sod(n) for n = 225544394 and 225544403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225544439) 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, 33432 + ... + 39607.

It is an arithmetic number, because the mean of its divisors is an integer number (21963128).

Almost surely, 2^225544432 is an apocalyptic number.

It is an amenable number.

225544432 is a deficient number, since it is larger than the sum of its proper divisors (213718128).

225544432 is a wasteful number, since it uses less digits than its factorization.

225544432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73240 (or 73234 counting only the distinct ones).

The product of its digits is 38400, while the sum is 31.

The square root of 225544432 is about 15018.1367685875. The cubic root of 225544432 is about 608.7103741000.

Adding to 225544432 its reverse (234445522), we get a palindrome (459989954).

The spelling of 225544432 in words is "two hundred twenty-five million, five hundred forty-four thousand, four hundred thirty-two".