205052565 has 8 divisors (see below), whose sum is σ = 328084128. Its totient is φ = 109361360.

The previous prime is 205052539. The next prime is 205052609. The reversal of 205052565 is 565250502.

205052565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 205052565 - 2⁹ = 205052053 is a prime.

It is a Curzon number.

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, 6835071 + ... + 6835100.

It is an arithmetic number, because the mean of its divisors is an integer number (41010516).

Almost surely, 2^205052565 is an apocalyptic number.

It is an amenable number.

205052565 is a deficient number, since it is larger than the sum of its proper divisors (123031563).

205052565 is a wasteful number, since it uses less digits than its factorization.

205052565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13670179.

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 205052565 is about 14319.6565950444. The cubic root of 205052565 is about 589.6872468629.

It can be divided in two parts, 2050 and 52565, that added together give a triangular number (54615 = T₃₃₀).

The spelling of 205052565 in words is "two hundred five million, fifty-two thousand, five hundred sixty-five".