225211829 has 8 divisors (see below), whose sum is σ = 226512000. Its totient is φ = 223916112.

The previous prime is 225211793. The next prime is 225211841. The reversal of 225211829 is 928112522.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 225211829 - 2²⁰ = 224163253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225211795 and 225211804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225211879) 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 7 ways as a sum of consecutive naturals, for example, 156887 + ... + 158315.

It is an arithmetic number, because the mean of its divisors is an integer number (28314000).

Almost surely, 2^225211829 is an apocalyptic number.

It is an amenable number.

225211829 is a deficient number, since it is larger than the sum of its proper divisors (1300171).

225211829 is a wasteful number, since it uses less digits than its factorization.

225211829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2227.

The product of its digits is 5760, while the sum is 32.

The square root of 225211829 is about 15007.0593055402. The cubic root of 225211829 is about 608.4110118026.

The spelling of 225211829 in words is "two hundred twenty-five million, two hundred eleven thousand, eight hundred twenty-nine".