205325287 has 4 divisors (see below), whose sum is σ = 205360920. Its totient is φ = 205289656.

The previous prime is 205325231. The next prime is 205325297. The reversal of 205325287 is 782523502.

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 205325287 - 2²³ = 196936679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205325227) 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, 6973 + ... + 21430.

It is an arithmetic number, because the mean of its divisors is an integer number (51340230).

Almost surely, 2^205325287 is an apocalyptic number.

205325287 is a deficient number, since it is larger than the sum of its proper divisors (35633).

205325287 is an equidigital number, since it uses as much as digits as its factorization.

205325287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35632.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 205325287 is about 14329.1760754064. The cubic root of 205325287 is about 589.9485610617.

Adding to 205325287 its reverse (782523502), we get a palindrome (987848789).

The spelling of 205325287 in words is "two hundred five million, three hundred twenty-five thousand, two hundred eighty-seven".