512303503 has 2 divisors, whose sum is σ = 512303504. Its totient is φ = 512303502.

The previous prime is 512303501. The next prime is 512303521. The reversal of 512303503 is 305303215.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 512303503 - 2¹ = 512303501 is a prime.

It is a super-3 number, since 3×512303503³ (a number of 27 digits) contains 333 as substring.

Together with 512303501, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (512303501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256151751 + 256151752.

It is an arithmetic number, because the mean of its divisors is an integer number (256151752).

Almost surely, 2^512303503 is an apocalyptic number.

512303503 is a deficient number, since it is larger than the sum of its proper divisors (1).

512303503 is an equidigital number, since it uses as much as digits as its factorization.

512303503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 512303503 is about 22634.1225365597. The cubic root of 512303503 is about 800.1580432550.

Adding to 512303503 its reverse (305303215), we get a palindrome (817606718).

The spelling of 512303503 in words is "five hundred twelve million, three hundred three thousand, five hundred three".