520013185480 has 32 divisors (see below), whose sum is σ = 1175968922040. Its totient is φ = 206949406720.

The previous prime is 520013185457. The next prime is 520013185481. The reversal of 520013185480 is 84581310025.

It can be written as a sum of positive squares in 4 ways, for example, as 495022002084 + 24991183396 = 703578^2 + 158086^2 .

It is not an unprimeable number, because it can be changed into a prime (520013185481) 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 7 ways as a sum of consecutive naturals, for example, 32987881 + ... + 33003640.

Almost surely, 2^520013185480 is an apocalyptic number.

It is an amenable number.

520013185480 is an abundant number, since it is smaller than the sum of its proper divisors (655955736560).

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

520013185480 is a wasteful number, since it uses less digits than its factorization.

520013185480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65991729 (or 65991725 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

The spelling of 520013185480 in words is "five hundred twenty billion, thirteen million, one hundred eighty-five thousand, four hundred eighty".