505303061 has 2 divisors, whose sum is σ = 505303062. Its totient is φ = 505303060.

The previous prime is 505303021. The next prime is 505303093. The reversal of 505303061 is 160303505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 495730225 + 9572836 = 22265^2 + 3094^2 .

It is a cyclic number.

It is not a de Polignac number, because 505303061 - 2⁶ = 505302997 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505303021) 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, 252651530 + 252651531.

It is an arithmetic number, because the mean of its divisors is an integer number (252651531).

Almost surely, 2^505303061 is an apocalyptic number.

It is an amenable number.

505303061 is a deficient number, since it is larger than the sum of its proper divisors (1).

505303061 is an equidigital number, since it uses as much as digits as its factorization.

505303061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 505303061 is about 22478.9470616397. The cubic root of 505303061 is about 796.4966918718.

Adding to 505303061 its reverse (160303505), we get a palindrome (665606566).

The spelling of 505303061 in words is "five hundred five million, three hundred three thousand, sixty-one".