225607730 has 16 divisors (see below), whose sum is σ = 406278720. Its totient is φ = 90202032.

The previous prime is 225607717. The next prime is 225607751. The reversal of 225607730 is 37706522.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28331 + ... + 35409.

It is an arithmetic number, because the mean of its divisors is an integer number (25392420).

Almost surely, 2^225607730 is an apocalyptic number.

225607730 is a deficient number, since it is larger than the sum of its proper divisors (180670990).

225607730 is a wasteful number, since it uses less digits than its factorization.

225607730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10273.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 225607730 is about 15020.2440060074. The cubic root of 225607730 is about 608.7673126894.

The spelling of 225607730 in words is "two hundred twenty-five million, six hundred seven thousand, seven hundred thirty".