205330051 has 2 divisors, whose sum is σ = 205330052. Its totient is φ = 205330050.

The previous prime is 205330001. The next prime is 205330079. The reversal of 205330051 is 150033502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 205330051 - 2⁷ = 205329923 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (205330001) 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 as a sum of consecutive naturals, namely, 102665025 + 102665026.

It is an arithmetic number, because the mean of its divisors is an integer number (102665026).

Almost surely, 2^205330051 is an apocalyptic number.

205330051 is a deficient number, since it is larger than the sum of its proper divisors (1).

205330051 is an equidigital number, since it uses as much as digits as its factorization.

205330051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 205330051 is about 14329.3423087035. The cubic root of 205330051 is about 589.9531237295.

Adding to 205330051 its reverse (150033502), we get a palindrome (355363553).

It can be divided in two parts, 2053300 and 51, that added together give a triangular number (2053351 = T₂₀₂₆).

The spelling of 205330051 in words is "two hundred five million, three hundred thirty thousand, fifty-one".