225225085 has 16 divisors (see below), whose sum is σ = 282424320. Its totient is φ = 172099840.

The previous prime is 225225073. The next prime is 225225101. The reversal of 225225085 is 580522522.

It is not a de Polignac number, because 225225085 - 2¹⁷ = 225094013 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 155796 + ... + 157234.

It is an arithmetic number, because the mean of its divisors is an integer number (17651520).

Almost surely, 2^225225085 is an apocalyptic number.

It is an amenable number.

225225085 is a deficient number, since it is larger than the sum of its proper divisors (57199235).

225225085 is a wasteful number, since it uses less digits than its factorization.

225225085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2828.

The product of its (nonzero) digits is 16000, while the sum is 31.

The square root of 225225085 is about 15007.5009578544. The cubic root of 225225085 is about 608.4229486210.

The spelling of 225225085 in words is "two hundred twenty-five million, two hundred twenty-five thousand, eighty-five".