225004211 has 4 divisors (see below), whose sum is σ = 225036000. Its totient is φ = 224972424.

The previous prime is 225004151. The next prime is 225004217. The reversal of 225004211 is 112400522.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 225004211 - 2²² = 220809907 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225004211.

It is not an unprimeable number, because it can be changed into a prime (225004217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65 + ... + 21213.

It is an arithmetic number, because the mean of its divisors is an integer number (56259000).

Almost surely, 2^225004211 is an apocalyptic number.

225004211 is a deficient number, since it is larger than the sum of its proper divisors (31789).

225004211 is a wasteful number, since it uses less digits than its factorization.

225004211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31788.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 225004211 is about 15000.1403660099. The cubic root of 225004211 is about 608.2239939266.

Adding to 225004211 its reverse (112400522), we get a palindrome (337404733).

The spelling of 225004211 in words is "two hundred twenty-five million, four thousand, two hundred eleven".