507504013 has 4 divisors (see below), whose sum is σ = 507967740. Its totient is φ = 507040288.

The previous prime is 507504001. The next prime is 507504037. The reversal of 507504013 is 310405705.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 70610409 + 436893604 = 8403^2 + 20902^2 .

It is a cyclic number.

It is not a de Polignac number, because 507504013 - 2²¹ = 505406861 is a prime.

It is a super-2 number, since 2×507504013² = 515120646422208338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (507504313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230218 + ... + 232411.

It is an arithmetic number, because the mean of its divisors is an integer number (126991935).

Almost surely, 2^507504013 is an apocalyptic number.

It is an amenable number.

507504013 is a deficient number, since it is larger than the sum of its proper divisors (463727).

507504013 is a wasteful number, since it uses less digits than its factorization.

507504013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463726.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 507504013 is about 22527.8497198468. The cubic root of 507504013 is about 797.6514522553.

Adding to 507504013 its reverse (310405705), we get a palindrome (817909718).

The spelling of 507504013 in words is "five hundred seven million, five hundred four thousand, thirteen".