520135531024 has 60 divisors (see below), whose sum is σ = 1049878450180. Its totient is φ = 249564441600.

The previous prime is 520135531001. The next prime is 520135531031. The reversal of 520135531024 is 420135531025.

It can be written as a sum of positive squares in 6 ways, for example, as 340901841424 + 179233689600 = 583868^2 + 423360^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1482142 + ... + 1799170.

Almost surely, 2^520135531024 is an apocalyptic number.

It is an amenable number.

520135531024 is an abundant number, since it is smaller than the sum of its proper divisors (529742919156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520135531024 is a wasteful number, since it uses less digits than its factorization.

520135531024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317180 (or 317133 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

Subtracting from 520135531024 its reverse (420135531025), we obtain a palindrome (99999999999).

The spelling of 520135531024 in words is "five hundred twenty billion, one hundred thirty-five million, five hundred thirty-one thousand, twenty-four".