225258236 has 12 divisors (see below), whose sum is σ = 450516528. Its totient is φ = 96539232.

The previous prime is 225258191. The next prime is 225258247. The reversal of 225258236 is 632852522.

225258236 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 225258196 and 225258205.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 4022441 + ... + 4022496.

It is an arithmetic number, because the mean of its divisors is an integer number (37543044).

Almost surely, 2^225258236 is an apocalyptic number.

It is an amenable number.

225258236 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225258236 is a wasteful number, since it uses less digits than its factorization.

225258236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8044948 (or 8044946 counting only the distinct ones).

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

The square root of 225258236 is about 15008.6053982374. The cubic root of 225258236 is about 608.4527985223.

The spelling of 225258236 in words is "two hundred twenty-five million, two hundred fifty-eight thousand, two hundred thirty-six".