225405044 has 24 divisors (see below), whose sum is σ = 412691328. Its totient is φ = 107610560.

The previous prime is 225405043. The next prime is 225405071. The reversal of 225405044 is 440504522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225405043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6914 + ... + 22329.

It is an arithmetic number, because the mean of its divisors is an integer number (17195472).

Almost surely, 2^225405044 is an apocalyptic number.

It is an amenable number.

225405044 is a deficient number, since it is larger than the sum of its proper divisors (187286284).

225405044 is a wasteful number, since it uses less digits than its factorization.

225405044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29335 (or 29333 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 225405044 is about 15013.4953958097. The cubic root of 225405044 is about 608.5849525359.

Adding to 225405044 its reverse (440504522), we get a palindrome (665909566).

The spelling of 225405044 in words is "two hundred twenty-five million, four hundred five thousand, forty-four".