225236825 has 24 divisors (see below), whose sum is σ = 322613280. Its totient is φ = 154169600.

The previous prime is 225236789. The next prime is 225236833. The reversal of 225236825 is 528632522.

It is not a de Polignac number, because 225236825 - 2⁶ = 225236761 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 19415 + ... + 28764.

It is an arithmetic number, because the mean of its divisors is an integer number (13442220).

Almost surely, 2^225236825 is an apocalyptic number.

225236825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225236825 is a deficient number, since it is larger than the sum of its proper divisors (97376455).

225236825 is a wasteful number, since it uses less digits than its factorization.

225236825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48217 (or 48212 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 225236825 is about 15007.8920904969. The cubic root of 225236825 is about 608.4335199143.

The spelling of 225236825 in words is "two hundred twenty-five million, two hundred thirty-six thousand, eight hundred twenty-five".