520513240432 has 40 divisors (see below), whose sum is σ = 1009629308160. Its totient is φ = 259963930560.

The previous prime is 520513240409. The next prime is 520513240439. The reversal of 520513240432 is 234042315025.

It is a junction number, because it is equal to n+sod(n) for n = 520513240394 and 520513240403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520513240439) 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, 69185823 + ... + 69193345.

It is an arithmetic number, because the mean of its divisors is an integer number (25240732704).

Almost surely, 2^520513240432 is an apocalyptic number.

It is an amenable number.

520513240432 is a deficient number, since it is larger than the sum of its proper divisors (489116067728).

520513240432 is a wasteful number, since it uses less digits than its factorization.

520513240432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11821 (or 11815 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 520513240432 its reverse (234042315025), we get a palindrome (754555555457).

The spelling of 520513240432 in words is "five hundred twenty billion, five hundred thirteen million, two hundred forty thousand, four hundred thirty-two".