225601448906 has 4 divisors (see below), whose sum is σ = 338402173362. Its totient is φ = 112800724452.

The previous prime is 225601448879. The next prime is 225601448951. The reversal of 225601448906 is 609844106522.

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., 162429150625 + 63172298281 = 403025^2 + 251341^2 .

It is a super-3 number, since 3×225601448906³ (a number of 35 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56400362225 + ... + 56400362228.

Almost surely, 2^225601448906 is an apocalyptic number.

225601448906 is a deficient number, since it is larger than the sum of its proper divisors (112800724456).

225601448906 is a wasteful number, since it uses less digits than its factorization.

225601448906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112800724455.

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 225601448906 in words is "two hundred twenty-five billion, six hundred one million, four hundred forty-eight thousand, nine hundred six".