520247532 has 96 divisors (see below), whose sum is σ = 1480066560. Its totient is φ = 138839040.

The previous prime is 520247527. The next prime is 520247537. The reversal of 520247532 is 235742025.

It is an interprime number because it is at equal distance from previous prime (520247527) and next prime (520247537).

It is a self number, because there is not a number n which added to its sum of digits gives 520247532.

It is not an unprimeable number, because it can be changed into a prime (520247537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197182 + ... + 199802.

It is an arithmetic number, because the mean of its divisors is an integer number (15417360).

Almost surely, 2^520247532 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 520247532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (740033280).

520247532 is an abundant number, since it is smaller than the sum of its proper divisors (959819028).

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

520247532 is a wasteful number, since it uses less digits than its factorization.

520247532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2791 (or 2789 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 520247532 is about 22808.9353543737. The cubic root of 520247532 is about 804.2727286932.

Adding to 520247532 its reverse (235742025), we get a palindrome (755989557).

The spelling of 520247532 in words is "five hundred twenty million, two hundred forty-seven thousand, five hundred thirty-two".