503285513 has 2 divisors, whose sum is σ = 503285514. Its totient is φ = 503285512.

The previous prime is 503285473. The next prime is 503285569. The reversal of 503285513 is 315582305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 348830329 + 154455184 = 18677^2 + 12428^2 .

It is a cyclic number.

It is not a de Polignac number, because 503285513 - 2⁶ = 503285449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 503285513.

It is not a weakly prime, because it can be changed into another prime (503285113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251642756 + 251642757.

It is an arithmetic number, because the mean of its divisors is an integer number (251642757).

Almost surely, 2^503285513 is an apocalyptic number.

It is an amenable number.

503285513 is a deficient number, since it is larger than the sum of its proper divisors (1).

503285513 is an equidigital number, since it uses as much as digits as its factorization.

503285513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 503285513 is about 22434.0257867374. The cubic root of 503285513 is about 795.4352075657.

The spelling of 503285513 in words is "five hundred three million, two hundred eighty-five thousand, five hundred thirteen".