522320513 has 8 divisors (see below), whose sum is σ = 613635456. Its totient is φ = 438310800.

The previous prime is 522320503. The next prime is 522320521. The reversal of 522320513 is 315023225.

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 522320513 - 2²⁶ = 455211649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (522320503) 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, 1826153 + ... + 1826438.

It is an arithmetic number, because the mean of its divisors is an integer number (76704432).

Almost surely, 2^522320513 is an apocalyptic number.

It is an amenable number.

522320513 is a deficient number, since it is larger than the sum of its proper divisors (91314943).

522320513 is a wasteful number, since it uses less digits than its factorization.

522320513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3652615.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 522320513 is about 22854.3324776726. The cubic root of 522320513 is about 805.3395494136.

Adding to 522320513 its reverse (315023225), we get a palindrome (837343738).

The spelling of 522320513 in words is "five hundred twenty-two million, three hundred twenty thousand, five hundred thirteen".