503130513 has 8 divisors (see below), whose sum is σ = 672998976. Its totient is φ = 334341200.

The previous prime is 503130499. The next prime is 503130569. The reversal of 503130513 is 315031305.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 503130513 - 2⁶ = 503130449 is a prime.

It is a super-2 number, since 2×503130513² = 506280626223286338, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 503130513.

It is not an unprimeable number, because it can be changed into a prime (503130413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268698 + ... + 270563.

It is an arithmetic number, because the mean of its divisors is an integer number (84124872).

Almost surely, 2^503130513 is an apocalyptic number.

It is an amenable number.

503130513 is a deficient number, since it is larger than the sum of its proper divisors (169868463).

503130513 is a wasteful number, since it uses less digits than its factorization.

503130513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539575.

The product of its (nonzero) digits is 675, while the sum is 21.

The square root of 503130513 is about 22430.5709468127. The cubic root of 503130513 is about 795.3535407893.

Adding to 503130513 its reverse (315031305), we get a palindrome (818161818).

The spelling of 503130513 in words is "five hundred three million, one hundred thirty thousand, five hundred thirteen".