522731413 has 4 divisors (see below), whose sum is σ = 522934380. Its totient is φ = 522528448.

The previous prime is 522731371. The next prime is 522731431. The reversal of 522731413 is 314137225.

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 75916369 + 446815044 = 8713^2 + 21138^2 .

It is a cyclic number.

It is not a de Polignac number, because 522731413 - 2¹⁷ = 522600341 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 (522731213) 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 3 ways as a sum of consecutive naturals, for example, 97570 + ... + 102787.

It is an arithmetic number, because the mean of its divisors is an integer number (130733595).

Almost surely, 2^522731413 is an apocalyptic number.

It is an amenable number.

522731413 is a deficient number, since it is larger than the sum of its proper divisors (202967).

522731413 is a wasteful number, since it uses less digits than its factorization.

522731413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202966.

The product of its digits is 5040, while the sum is 28.

The square root of 522731413 is about 22863.3202531916. The cubic root of 522731413 is about 805.5506760277.

Adding to 522731413 its reverse (314137225), we get a palindrome (836868638).

The spelling of 522731413 in words is "five hundred twenty-two million, seven hundred thirty-one thousand, four hundred thirteen".