503216613 has 48 divisors (see below), whose sum is σ = 781073280. Its totient is φ = 311568768.

The previous prime is 503216611. The next prime is 503216621. The reversal of 503216613 is 316612305.

503216613 is a `hidden beast` number, since 5 + 0 + 32 + 16 + 613 = 666.

It is not a de Polignac number, because 503216613 - 2¹ = 503216611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503216611) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1033056 + ... + 1033542.

It is an arithmetic number, because the mean of its divisors is an integer number (16272360).

Almost surely, 2^503216613 is an apocalyptic number.

It is an amenable number.

503216613 is a deficient number, since it is larger than the sum of its proper divisors (277856667).

503216613 is a wasteful number, since it uses less digits than its factorization.

503216613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 503216613 is about 22432.4901203589. The cubic root of 503216613 is about 795.3989074368.

Adding to 503216613 its reverse (316612305), we get a palindrome (819828918).

The spelling of 503216613 in words is "five hundred three million, two hundred sixteen thousand, six hundred thirteen".