225321466 has 4 divisors (see below), whose sum is σ = 337982202. Its totient is φ = 112660732.

The previous prime is 225321463. The next prime is 225321479. The reversal of 225321466 is 664123522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 116014441 + 109307025 = 10771^2 + 10455^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (225321463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56330365 + ... + 56330368.

Almost surely, 2^225321466 is an apocalyptic number.

225321466 is a deficient number, since it is larger than the sum of its proper divisors (112660736).

225321466 is a wasteful number, since it uses less digits than its factorization.

225321466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112660735.

The product of its digits is 17280, while the sum is 31.

The square root of 225321466 is about 15010.7117086433. The cubic root of 225321466 is about 608.5097241083.

Adding to 225321466 its reverse (664123522), we get a palindrome (889444988).

The spelling of 225321466 in words is "two hundred twenty-five million, three hundred twenty-one thousand, four hundred sixty-six".