52316520 has 64 divisors (see below), whose sum is σ = 161205120. Its totient is φ = 13572864.

The previous prime is 52316501. The next prime is 52316543. The reversal of 52316520 is 2561325.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1452 + ... + 10331.

It is an arithmetic number, because the mean of its divisors is an integer number (2518830).

Almost surely, 2^52316520 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 52316520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80602560).

52316520 is an abundant number, since it is smaller than the sum of its proper divisors (108888600).

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

52316520 is a wasteful number, since it uses less digits than its factorization.

52316520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11834 (or 11830 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 52316520 is about 7233.0159684602. The cubic root of 52316520 is about 374.0069012234.

Adding to 52316520 its reverse (2561325), we get a palindrome (54877845).

The spelling of 52316520 in words is "fifty-two million, three hundred sixteen thousand, five hundred twenty".