521424320310052 has 12 divisors (see below), whose sum is σ = 912497784335116. Its totient is φ = 260710667642880.

The previous prime is 521424320310011. The next prime is 521424320310059. The reversal of 521424320310052 is 250013023424125.

It can be written as a sum of positive squares in 2 ways, for example, as 36728254227456 + 484696066082596 = 6060384^2 + 22015814^2 .

It is not an unprimeable number, because it can be changed into a prime (521424320310059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372341793 + ... + 373739560.

Almost surely, 2^{521424320310052} is an apocalyptic number.

It is an amenable number.

521424320310052 is a deficient number, since it is larger than the sum of its proper divisors (391073464025064).

521424320310052 is a wasteful number, since it uses less digits than its factorization.

521424320310052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746256078 (or 746256076 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 521424320310052 its reverse (250013023424125), we get a palindrome (771437343734177).

The spelling of 521424320310052 in words is "five hundred twenty-one trillion, four hundred twenty-four billion, three hundred twenty million, three hundred ten thousand, fifty-two".