225549686 has 8 divisors (see below), whose sum is σ = 338650200. Its totient is φ = 112666288.

The previous prime is 225549683. The next prime is 225549713. The reversal of 225549686 is 686945522.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 225549686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225549683) 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 3 ways as a sum of consecutive naturals, for example, 51656 + ... + 55851.

It is an arithmetic number, because the mean of its divisors is an integer number (42331275).

Almost surely, 2^225549686 is an apocalyptic number.

225549686 is a deficient number, since it is larger than the sum of its proper divisors (113100514).

225549686 is a wasteful number, since it uses less digits than its factorization.

225549686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108558.

The product of its digits is 1036800, while the sum is 47.

The square root of 225549686 is about 15018.3116894010. The cubic root of 225549686 is about 608.7151006476.

The spelling of 225549686 in words is "two hundred twenty-five million, five hundred forty-nine thousand, six hundred eighty-six".