500204993 has 2 divisors, whose sum is σ = 500204994. Its totient is φ = 500204992.

The previous prime is 500204981. The next prime is 500205031. The reversal of 500204993 is 399402005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 258309184 + 241895809 = 16072^2 + 15553^2 .

It is a cyclic number.

It is not a de Polignac number, because 500204993 - 2⁸ = 500204737 is a prime.

It is not a weakly prime, because it can be changed into another prime (500204893) 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, 250102496 + 250102497.

It is an arithmetic number, because the mean of its divisors is an integer number (250102497).

Almost surely, 2^500204993 is an apocalyptic number.

It is an amenable number.

500204993 is a deficient number, since it is larger than the sum of its proper divisors (1).

500204993 is an equidigital number, since it uses as much as digits as its factorization.

500204993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 500204993 is about 22365.2630881016. The cubic root of 500204993 is about 793.8089798652.

Adding to 500204993 its reverse (399402005), we get a palindrome (899606998).

The spelling of 500204993 in words is "five hundred million, two hundred four thousand, nine hundred ninety-three".