205004255 has 8 divisors (see below), whose sum is σ = 249677232. Its totient is φ = 161555328.

The previous prime is 205004231. The next prime is 205004269. The reversal of 205004255 is 552400502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205004255 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 205004255.

It is a congruent 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, 305642 + ... + 306311.

It is an arithmetic number, because the mean of its divisors is an integer number (31209654).

Almost surely, 2^205004255 is an apocalyptic number.

205004255 is a deficient number, since it is larger than the sum of its proper divisors (44672977).

205004255 is an equidigital number, since it uses as much as digits as its factorization.

205004255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612025.

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 205004255 is about 14317.9696535507. The cubic root of 205004255 is about 589.6409334888.

Adding to 205004255 its reverse (552400502), we get a palindrome (757404757).

The spelling of 205004255 in words is "two hundred five million, four thousand, two hundred fifty-five".