204553231 has 8 divisors (see below), whose sum is σ = 216881280. Its totient is φ = 192258048.

The previous prime is 204553229. The next prime is 204553241. The reversal of 204553231 is 132355402.

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 204553231 - 2¹ = 204553229 is a prime.

It is a super-2 number, since 2×204553231² = 83684048625078722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204553196 and 204553205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204553241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5250 + ... + 20896.

It is an arithmetic number, because the mean of its divisors is an integer number (27110160).

Almost surely, 2^204553231 is an apocalyptic number.

204553231 is a deficient number, since it is larger than the sum of its proper divisors (12328049).

204553231 is a wasteful number, since it uses less digits than its factorization.

204553231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16433.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 204553231 is about 14302.2107032444. The cubic root of 204553231 is about 589.2081985980.

The spelling of 204553231 in words is "two hundred four million, five hundred fifty-three thousand, two hundred thirty-one".