204455255 has 4 divisors (see below), whose sum is σ = 245346312. Its totient is φ = 163564200.

The previous prime is 204455231. The next prime is 204455263. The reversal of 204455255 is 552554402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 552554402 = 2 ⋅276277201.

It is not a de Polignac number, because 204455255 - 2¹⁶ = 204389719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20445521 + ... + 20445530.

It is an arithmetic number, because the mean of its divisors is an integer number (61336578).

Almost surely, 2^204455255 is an apocalyptic number.

204455255 is a deficient number, since it is larger than the sum of its proper divisors (40891057).

204455255 is an equidigital number, since it uses as much as digits as its factorization.

204455255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40891056.

The product of its (nonzero) digits is 40000, while the sum is 32.

The square root of 204455255 is about 14298.7850882514. The cubic root of 204455255 is about 589.1141114640.

The spelling of 204455255 in words is "two hundred four million, four hundred fifty-five thousand, two hundred fifty-five".