228547225 has 24 divisors (see below), whose sum is σ = 288999360. Its totient is φ = 179256000.

The previous prime is 228547199. The next prime is 228547247. The reversal of 228547225 is 522745822.

It is not a de Polignac number, because 228547225 - 2⁹ = 228546713 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, 587331 + ... + 587719.

It is an arithmetic number, because the mean of its divisors is an integer number (12041640).

Almost surely, 2^228547225 is an apocalyptic number.

228547225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

228547225 is a deficient number, since it is larger than the sum of its proper divisors (60452135).

228547225 is a wasteful number, since it uses less digits than its factorization.

228547225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801 (or 796 counting only the distinct ones).

The product of its digits is 89600, while the sum is 37.

The square root of 228547225 is about 15117.7784412922. The cubic root of 228547225 is about 611.3998354386.

The spelling of 228547225 in words is "two hundred twenty-eight million, five hundred forty-seven thousand, two hundred twenty-five".