225185705 has 16 divisors (see below), whose sum is σ = 279880704. Its totient is φ = 173749440.

The previous prime is 225185687. The next prime is 225185717. The reversal of 225185705 is 507581522.

It is not a de Polignac number, because 225185705 - 2⁸ = 225185449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46844 + ... + 51426.

It is an arithmetic number, because the mean of its divisors is an integer number (17492544).

Almost surely, 2^225185705 is an apocalyptic number.

It is an amenable number.

225185705 is a deficient number, since it is larger than the sum of its proper divisors (54694999).

225185705 is a wasteful number, since it uses less digits than its factorization.

225185705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4936.

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 225185705 is about 15006.1888899214. The cubic root of 225185705 is about 608.3874861824.

The spelling of 225185705 in words is "two hundred twenty-five million, one hundred eighty-five thousand, seven hundred five".