205510441 has 12 divisors (see below), whose sum is σ = 219041472. Its totient is φ = 192768984.

The previous prime is 205510429. The next prime is 205510447. The reversal of 205510441 is 144015502.

It is not a de Polignac number, because 205510441 - 2¹³ = 205502249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205510447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34420 + ... + 39946.

It is an arithmetic number, because the mean of its divisors is an integer number (18253456).

Almost surely, 2^205510441 is an apocalyptic number.

It is an amenable number.

205510441 is a deficient number, since it is larger than the sum of its proper divisors (13531031).

205510441 is a wasteful number, since it uses less digits than its factorization.

205510441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5668 (or 5649 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 205510441 is about 14335.6353539004. The cubic root of 205510441 is about 590.1258383315.

Adding to 205510441 its reverse (144015502), we get a palindrome (349525943).

The spelling of 205510441 in words is "two hundred five million, five hundred ten thousand, four hundred forty-one".