520289532 has 72 divisors (see below), whose sum is σ = 1568426496. Its totient is φ = 142189344.

The previous prime is 520289531. The next prime is 520289543. The reversal of 520289532 is 235982025.

520289532 is a `hidden beast` number, since 520 + 2 + 89 + 53 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520289531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39088 + ... + 50679.

Almost surely, 2^520289532 is an apocalyptic number.

It is an amenable number.

520289532 is an abundant number, since it is smaller than the sum of its proper divisors (1048136964).

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

520289532 is a wasteful number, since it uses less digits than its factorization.

520289532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89807 (or 89802 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 520289532 is about 22809.8560276035. The cubic root of 520289532 is about 804.2943713047.

The spelling of 520289532 in words is "five hundred twenty million, two hundred eighty-nine thousand, five hundred thirty-two".