205065433 has 4 divisors (see below), whose sum is σ = 210607780. Its totient is φ = 199523088.

The previous prime is 205065391. The next prime is 205065437. The reversal of 205065433 is 334560502.

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

It can be written as a sum of positive squares in 2 ways, for example, as 132526144 + 72539289 = 11512^2 + 8517^2 .

It is a cyclic number.

It is not a de Polignac number, because 205065433 - 2²⁵ = 171511001 is a prime.

It is a super-2 number, since 2×205065433² = 84103663622954978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205065437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2771118 + ... + 2771191.

It is an arithmetic number, because the mean of its divisors is an integer number (52651945).

Almost surely, 2^205065433 is an apocalyptic number.

It is an amenable number.

205065433 is a deficient number, since it is larger than the sum of its proper divisors (5542347).

205065433 is an equidigital number, since it uses as much as digits as its factorization.

205065433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5542346.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 205065433 is about 14320.1059004464. The cubic root of 205065433 is about 589.6995818086.

The spelling of 205065433 in words is "two hundred five million, sixty-five thousand, four hundred thirty-three".