225221486 has 32 divisors (see below), whose sum is σ = 394849728. Its totient is φ = 94348800.

The previous prime is 225221461. The next prime is 225221519. The reversal of 225221486 is 684122522.

225221486 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 320936 + ... + 321636.

It is an arithmetic number, because the mean of its divisors is an integer number (12339054).

Almost surely, 2^225221486 is an apocalyptic number.

225221486 is a deficient number, since it is larger than the sum of its proper divisors (169628242).

225221486 is a wasteful number, since it uses less digits than its factorization.

225221486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196.

The product of its digits is 15360, while the sum is 32.

The square root of 225221486 is about 15007.3810506697. The cubic root of 225221486 is about 608.4197078247.

The spelling of 225221486 in words is "two hundred twenty-five million, two hundred twenty-one thousand, four hundred eighty-six".