225705306 has 16 divisors (see below), whose sum is σ = 455881248. Its totient is φ = 74490000.

The previous prime is 225705301. The next prime is 225705329. The reversal of 225705306 is 603507522.

It is not an unprimeable number, because it can be changed into a prime (225705301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185620 + ... + 186831.

It is an arithmetic number, because the mean of its divisors is an integer number (28492578).

Almost surely, 2^225705306 is an apocalyptic number.

225705306 is an abundant number, since it is smaller than the sum of its proper divisors (230175942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225705306 is a wasteful number, since it uses less digits than its factorization.

225705306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372557.

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 225705306 is about 15023.4918045040. The cubic root of 225705306 is about 608.8550645846.

The spelling of 225705306 in words is "two hundred twenty-five million, seven hundred five thousand, three hundred six".