225394924672 has 16 divisors (see below), whose sum is σ = 449028951750. Its totient is φ = 112697462272.

The previous prime is 225394924669. The next prime is 225394924673. The reversal of 225394924672 is 276429493522.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 196475881536 + 28919043136 = 443256^2 + 170056^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (225394924673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 880448797 + ... + 880449052.

Almost surely, 2^225394924672 is an apocalyptic number.

It is an amenable number.

225394924672 is a deficient number, since it is larger than the sum of its proper divisors (223634027078).

225394924672 is an equidigital number, since it uses as much as digits as its factorization.

225394924672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760897863 (or 1760897851 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 55.

The spelling of 225394924672 in words is "two hundred twenty-five billion, three hundred ninety-four million, nine hundred twenty-four thousand, six hundred seventy-two".