225398912 has 24 divisors (see below), whose sum is σ = 449375535. Its totient is φ = 112614528.

The previous prime is 225398897. The next prime is 225398959. The reversal of 225398912 is 219893522.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 112699456 + 112699456 = 10616^2 + 10616^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=10616.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225398912.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 169193 + ... + 170519.

Almost surely, 2^225398912 is an apocalyptic number.

It is an amenable number.

225398912 is a deficient number, since it is larger than the sum of its proper divisors (223976623).

225398912 is an frugal number, since it uses more digits than its factorization.

225398912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2668 (or 1329 counting only the distinct ones).

The product of its digits is 77760, while the sum is 41.

The square root of 225398912 is about 15013.2911781528. The cubic root of 225398912 is about 608.5794337645.

The spelling of 225398912 in words is "two hundred twenty-five million, three hundred ninety-eight thousand, nine hundred twelve".