205470259 has 4 divisors (see below), whose sum is σ = 207504720. Its totient is φ = 203435800.

The previous prime is 205470227. The next prime is 205470283. The reversal of 205470259 is 952074502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 205470259 - 2⁵ = 205470227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205470289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1017079 + ... + 1017280.

It is an arithmetic number, because the mean of its divisors is an integer number (51876180).

Almost surely, 2^205470259 is an apocalyptic number.

205470259 is a deficient number, since it is larger than the sum of its proper divisors (2034461).

205470259 is a wasteful number, since it uses less digits than its factorization.

205470259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2034460.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 205470259 is about 14334.2338127993. The cubic root of 205470259 is about 590.0873747836.

The spelling of 205470259 in words is "two hundred five million, four hundred seventy thousand, two hundred fifty-nine".