520336613 has 8 divisors (see below), whose sum is σ = 548036928. Its totient is φ = 493059424.

The previous prime is 520336573. The next prime is 520336639. The reversal of 520336613 is 316633025.

It is a happy number.

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

It is not a de Polignac number, because 520336613 - 2²⁸ = 251901157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520336813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103256 + ... + 108177.

It is an arithmetic number, because the mean of its divisors is an integer number (68504616).

Almost surely, 2^520336613 is an apocalyptic number.

It is an amenable number.

520336613 is a deficient number, since it is larger than the sum of its proper divisors (27700315).

520336613 is a wasteful number, since it uses less digits than its factorization.

520336613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211563.

The product of its (nonzero) digits is 9720, while the sum is 29.

The square root of 520336613 is about 22810.8880361989. Note that the first 3 decimals coincide. The cubic root of 520336613 is about 804.3186307723.

Adding to 520336613 its reverse (316633025), we get a palindrome (836969638).

The spelling of 520336613 in words is "five hundred twenty million, three hundred thirty-six thousand, six hundred thirteen".