205542533 has 16 divisors (see below), whose sum is σ = 242939520. Its totient is φ = 170254656.

The previous prime is 205542509. The next prime is 205542539. The reversal of 205542533 is 335245502.

It is not a de Polignac number, because 205542533 - 2⁸ = 205542277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 205542496 and 205542505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205542539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20723 + ... + 28991.

It is an arithmetic number, because the mean of its divisors is an integer number (15183720).

Almost surely, 2^205542533 is an apocalyptic number.

It is an amenable number.

205542533 is a deficient number, since it is larger than the sum of its proper divisors (37396987).

205542533 is an equidigital number, since it uses as much as digits as its factorization.

205542533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8396.

The product of its (nonzero) digits is 18000, while the sum is 29.

The square root of 205542533 is about 14336.7546188111. The cubic root of 205542533 is about 590.1565542610.

The spelling of 205542533 in words is "two hundred five million, five hundred forty-two thousand, five hundred thirty-three".