204053605 has 16 divisors (see below), whose sum is σ = 281260800. Its totient is φ = 139214592.

The previous prime is 204053587. The next prime is 204053611. The reversal of 204053605 is 506350402.

It is a cyclic number.

It is not a de Polignac number, because 204053605 - 2⁵ = 204053573 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204053605.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7684 + ... + 21613.

It is an arithmetic number, because the mean of its divisors is an integer number (17578800).

Almost surely, 2^204053605 is an apocalyptic number.

It is an amenable number.

204053605 is a deficient number, since it is larger than the sum of its proper divisors (77207195).

204053605 is a wasteful number, since it uses less digits than its factorization.

204053605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29508.

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

The square root of 204053605 is about 14284.7332841744. The cubic root of 204053605 is about 588.7280892731.

The spelling of 204053605 in words is "two hundred four million, fifty-three thousand, six hundred five".