204455253 has 8 divisors (see below), whose sum is σ = 272719008. Its totient is φ = 136247504.

The previous prime is 204455231. The next prime is 204455263. The reversal of 204455253 is 352554402.

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 204455253 - 2¹⁸ = 204193109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204455253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204455263) 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, 4575 + ... + 20732.

It is an arithmetic number, because the mean of its divisors is an integer number (34089876).

Almost surely, 2^204455253 is an apocalyptic number.

It is an amenable number.

204455253 is a deficient number, since it is larger than the sum of its proper divisors (68263755).

204455253 is a wasteful number, since it uses less digits than its factorization.

204455253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28003.

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 204455253 is about 14298.7850183154. The cubic root of 204455253 is about 589.1141095431.

The spelling of 204455253 in words is "two hundred four million, four hundred fifty-five thousand, two hundred fifty-three".