520244017488 has 400 divisors, whose sum is σ = 1741199556096. Its totient is φ = 148531138560.

The previous prime is 520244017487. The next prime is 520244017499. The reversal of 520244017488 is 884710442025.

520244017488 is a `hidden beast` number, since 520 + 2 + 4 + 40 + 1 + 7 + 4 + 88 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520244017481) 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 79 ways as a sum of consecutive naturals, for example, 20322745 + ... + 20348327.

Almost surely, 2^520244017488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520244017488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (870599778048).

520244017488 is an abundant number, since it is smaller than the sum of its proper divisors (1220955538608).

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

520244017488 is a wasteful number, since it uses less digits than its factorization.

520244017488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25704 (or 25689 counting only the distinct ones).

The product of its (nonzero) digits is 573440, while the sum is 45.

The spelling of 520244017488 in words is "five hundred twenty billion, two hundred forty-four million, seventeen thousand, four hundred eighty-eight".