520632569888 has 54 divisors (see below), whose sum is σ = 1031342476311. Its totient is φ = 258714219264.

The previous prime is 520632569881. The next prime is 520632569911. The reversal of 520632569888 is 888965236025.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 278855812624 + 241776757264 = 528068^2 + 491708^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=510212.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 520632569888.

It is not an unprimeable number, because it can be changed into a prime (520632569881) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 934708106 + ... + 934708662.

Almost surely, 2^520632569888 is an apocalyptic number.

It is an amenable number.

520632569888 is a deficient number, since it is larger than the sum of its proper divisors (510709906423).

520632569888 is an frugal number, since it uses more digits than its factorization.

520632569888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582 (or 788 counting only the distinct ones).

The product of its (nonzero) digits is 49766400, while the sum is 62.

The spelling of 520632569888 in words is "five hundred twenty billion, six hundred thirty-two million, five hundred sixty-nine thousand, eight hundred eighty-eight".