228227825 has 24 divisors (see below), whose sum is σ = 334591680. Its totient is φ = 151099200.

The previous prime is 228227821. The next prime is 228227851. The reversal of 228227825 is 528722822.

It is not a de Polignac number, because 228227825 - 2² = 228227821 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (228227821) by changing a digit.

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, 17411 + ... + 27560.

It is an arithmetic number, because the mean of its divisors is an integer number (13941320).

Almost surely, 2^228227825 is an apocalyptic number.

228227825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

228227825 is a deficient number, since it is larger than the sum of its proper divisors (106363855).

228227825 is a wasteful number, since it uses less digits than its factorization.

228227825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45017 (or 45012 counting only the distinct ones).

The product of its digits is 71680, while the sum is 38.

The square root of 228227825 is about 15107.2110265264. The cubic root of 228227825 is about 611.1148875494.

The spelling of 228227825 in words is "two hundred twenty-eight million, two hundred twenty-seven thousand, eight hundred twenty-five".