228586725 has 48 divisors (see below), whose sum is σ = 425766400. Its totient is φ = 120216960.

The previous prime is 228586661. The next prime is 228586727. The reversal of 228586725 is 527685822.

It is not a de Polignac number, because 228586725 - 2⁶ = 228586661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228586727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46956 + ... + 51594.

Almost surely, 2^228586725 is an apocalyptic number.

228586725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

228586725 is a deficient number, since it is larger than the sum of its proper divisors (197179675).

228586725 is a wasteful number, since it uses less digits than its factorization.

228586725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4731 (or 4720 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 228586725 is about 15119.0847937301. The cubic root of 228586725 is about 611.4350563174.

228586725 divided by its sum of digits (45) gives a palindrome (5079705).

The spelling of 228586725 in words is "two hundred twenty-eight million, five hundred eighty-six thousand, seven hundred twenty-five".