205043533 has 4 divisors (see below), whose sum is σ = 205241920. Its totient is φ = 204845148.

The previous prime is 205043513. The next prime is 205043557. The reversal of 205043533 is 335340502.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205043533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 205043498 and 205043507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205043513) 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, 97635 + ... + 99712.

It is an arithmetic number, because the mean of its divisors is an integer number (51310480).

Almost surely, 2^205043533 is an apocalyptic number.

It is an amenable number.

205043533 is a deficient number, since it is larger than the sum of its proper divisors (198387).

205043533 is a wasteful number, since it uses less digits than its factorization.

205043533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198386.

The product of its (nonzero) digits is 5400, while the sum is 25.

The square root of 205043533 is about 14319.3412208802. The cubic root of 205043533 is about 589.6785887034.

The spelling of 205043533 in words is "two hundred five million, forty-three thousand, five hundred thirty-three".