204505355 has 8 divisors (see below), whose sum is σ = 247700592. Its totient is φ = 162074848.

The previous prime is 204505333. The next prime is 204505403. The reversal of 204505355 is 553505402.

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 204505355 - 2⁸ = 204505099 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190592 + ... + 191661.

It is an arithmetic number, because the mean of its divisors is an integer number (30962574).

Almost surely, 2^204505355 is an apocalyptic number.

204505355 is a deficient number, since it is larger than the sum of its proper divisors (43195237).

204505355 is a wasteful number, since it uses less digits than its factorization.

204505355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382365.

The product of its (nonzero) digits is 15000, while the sum is 29.

The square root of 204505355 is about 14300.5368780336. The cubic root of 204505355 is about 589.1622266479.

The spelling of 204505355 in words is "two hundred four million, five hundred five thousand, three hundred fifty-five".