520503405960 has 64 divisors (see below), whose sum is σ = 1561560638400. Its totient is φ = 138796426496.

The previous prime is 520503405893. The next prime is 520503405967. The reversal of 520503405960 is 69504305025.

It is not an unprimeable number, because it can be changed into a prime (520503405967) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5500567 + ... + 5594393.

It is an arithmetic number, because the mean of its divisors is an integer number (24399384975).

Almost surely, 2^520503405960 is an apocalyptic number.

It is an amenable number.

520503405960 is an abundant number, since it is smaller than the sum of its proper divisors (1041057232440).

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

520503405960 is a wasteful number, since it uses less digits than its factorization.

520503405960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140070 (or 140066 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 39.

The spelling of 520503405960 in words is "five hundred twenty billion, five hundred three million, four hundred five thousand, nine hundred sixty".