520415413 has 8 divisors (see below), whose sum is σ = 596639232. Its totient is φ = 444661296.

The previous prime is 520415351. The next prime is 520415417. The reversal of 520415413 is 314514025.

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 520415413 - 2⁹ = 520414901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520415417) 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, 115045 + ... + 119482.

It is an arithmetic number, because the mean of its divisors is an integer number (74579904).

Almost surely, 2^520415413 is an apocalyptic number.

It is an amenable number.

520415413 is a deficient number, since it is larger than the sum of its proper divisors (76223819).

520415413 is a wasteful number, since it uses less digits than its factorization.

520415413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234851.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 520415413 is about 22812.6152161474. The cubic root of 520415413 is about 804.3592308425.

Adding to 520415413 its reverse (314514025), we get a palindrome (834929438).

The spelling of 520415413 in words is "five hundred twenty million, four hundred fifteen thousand, four hundred thirteen".