505320301 has 2 divisors, whose sum is σ = 505320302. Its totient is φ = 505320300.

The previous prime is 505320289. The next prime is 505320307. The reversal of 505320301 is 103023505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 271260900 + 234059401 = 16470^2 + 15299^2 .

It is a cyclic number.

It is not a de Polignac number, because 505320301 - 2⁵ = 505320269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505320307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252660150 + 252660151.

It is an arithmetic number, because the mean of its divisors is an integer number (252660151).

Almost surely, 2^505320301 is an apocalyptic number.

It is an amenable number.

505320301 is a deficient number, since it is larger than the sum of its proper divisors (1).

505320301 is an equidigital number, since it uses as much as digits as its factorization.

505320301 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 505320301 is about 22479.3305282875. The cubic root of 505320301 is about 796.5057500970.

Adding to 505320301 its reverse (103023505), we get a palindrome (608343806).

The spelling of 505320301 in words is "five hundred five million, three hundred twenty thousand, three hundred one".