520967322752 has 72 divisors (see below), whose sum is σ = 1047999637755. Its totient is φ = 257964445440.

The previous prime is 520967322739. The next prime is 520967322787. The reversal of 520967322752 is 257223769025.

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 only one way, i.e., 260483661376 + 260483661376 = 510376^2 + 510376^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=510376.

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 520967322752.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1069747853 + ... + 1069748339.

Almost surely, 2^520967322752 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 520967322752

520967322752 is an abundant number, since it is smaller than the sum of its proper divisors (527032315003).

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

520967322752 is an frugal number, since it uses more digits than its factorization.

520967322752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250 (or 620 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 50.

Multiplying 520967322752 by its sum of digits (50), we get a square (26048366137600 = 5103760²).

The spelling of 520967322752 in words is "five hundred twenty billion, nine hundred sixty-seven million, three hundred twenty-two thousand, seven hundred fifty-two".