205232305 has 4 divisors (see below), whose sum is σ = 246278772. Its totient is φ = 164185840.

The previous prime is 205232299. The next prime is 205232311. The reversal of 205232305 is 503232502.

205232305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (205232299) and next prime (205232311).

It can be written as a sum of positive squares in 2 ways, for example, as 60078001 + 145154304 = 7751^2 + 12048^2 .

It is not a de Polignac number, because 205232305 - 2³ = 205232297 is a prime.

It is a super-3 number, since 3×205232305³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian 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, 20523226 + ... + 20523235.

It is an arithmetic number, because the mean of its divisors is an integer number (61569693).

Almost surely, 2^205232305 is an apocalyptic number.

It is an amenable number.

205232305 is a deficient number, since it is larger than the sum of its proper divisors (41046467).

205232305 is an equidigital number, since it uses as much as digits as its factorization.

205232305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41046466.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 205232305 is about 14325.9312088255. The cubic root of 205232305 is about 589.8594944554.

Adding to 205232305 its reverse (503232502), we get a palindrome (708464807).

It can be divided in two parts, 20 and 5232305, that added together give a palindrome (5232325).

The spelling of 205232305 in words is "two hundred five million, two hundred thirty-two thousand, three hundred five".