503349313 has 2 divisors, whose sum is σ = 503349314. Its totient is φ = 503349312.

The previous prime is 503349299. The next prime is 503349337. The reversal of 503349313 is 313943305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 388602369 + 114746944 = 19713^2 + 10712^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-503349313 is a prime.

It is not a weakly prime, because it can be changed into another prime (503349373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251674656 + 251674657.

It is an arithmetic number, because the mean of its divisors is an integer number (251674657).

Almost surely, 2^503349313 is an apocalyptic number.

It is an amenable number.

503349313 is a deficient number, since it is larger than the sum of its proper divisors (1).

503349313 is an equidigital number, since it uses as much as digits as its factorization.

503349313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 31.

The square root of 503349313 is about 22435.4476888695. The cubic root of 503349313 is about 795.4688177933.

The spelling of 503349313 in words is "five hundred three million, three hundred forty-nine thousand, three hundred thirteen".