205051255 has 8 divisors (see below), whose sum is σ = 250232400. Its totient is φ = 161260416.

The previous prime is 205051247. The next prime is 205051261. The reversal of 205051255 is 552150502.

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 205051255 - 2³ = 205051247 is a prime.

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, 347250 + ... + 347839.

It is an arithmetic number, because the mean of its divisors is an integer number (31279050).

Almost surely, 2^205051255 is an apocalyptic number.

205051255 is a deficient number, since it is larger than the sum of its proper divisors (45181145).

205051255 is an equidigital number, since it uses as much as digits as its factorization.

205051255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695153.

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 205051255 is about 14319.6108536510. The cubic root of 205051255 is about 589.6859911004.

The spelling of 205051255 in words is "two hundred five million, fifty-one thousand, two hundred fifty-five".