520964532 has 108 divisors (see below), whose sum is σ = 1483295268. Its totient is φ = 153964800.

The previous prime is 520964531. The next prime is 520964537. The reversal of 520964532 is 235469025.

520964532 is a `hidden beast` number, since 5 + 2 + 0 + 9 + 645 + 3 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 308213136 + 212751396 = 17556^2 + 14586^2 .

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 (520964531) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 177138 + ... + 180054.

Almost surely, 2^520964532 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 520964532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (741647634).

520964532 is an abundant number, since it is smaller than the sum of its proper divisors (962330736).

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

520964532 is a wasteful number, since it uses less digits than its factorization.

520964532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2990 (or 2974 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 520964532 is about 22824.6474671571. The cubic root of 520964532 is about 804.6420393235.

The spelling of 520964532 in words is "five hundred twenty million, nine hundred sixty-four thousand, five hundred thirty-two".