520391152 has 20 divisors (see below), whose sum is σ = 1061324680. Its totient is φ = 246500928.

The previous prime is 520391083. The next prime is 520391161. The reversal of 520391152 is 251193025.

It is a self number, because there is not a number n which added to its sum of digits gives 520391152.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 855603 + ... + 856210.

It is an arithmetic number, because the mean of its divisors is an integer number (53066234).

Almost surely, 2^520391152 is an apocalyptic number.

It is an amenable number.

520391152 is an abundant number, since it is smaller than the sum of its proper divisors (540933528).

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

520391152 is a wasteful number, since it uses less digits than its factorization.

520391152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1711840 (or 1711834 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 520391152 is about 22812.0834646904. The cubic root of 520391152 is about 804.3467313007.

The spelling of 520391152 in words is "five hundred twenty million, three hundred ninety-one thousand, one hundred fifty-two".