52152320 has 96 divisors (see below), whose sum is σ = 136805760. Its totient is φ = 18923520.

The previous prime is 52152319. The next prime is 52152349. The reversal of 52152320 is 2325125.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 52152292 and 52152301.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112409 + ... + 112871.

It is an arithmetic number, because the mean of its divisors is an integer number (1425060).

Almost surely, 2^52152320 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 52152320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68402880).

52152320 is an abundant number, since it is smaller than the sum of its proper divisors (84653440).

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

52152320 is a wasteful number, since it uses less digits than its factorization.

52152320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 52152320 is about 7221.6563197095. The cubic root of 52152320 is about 373.6152066282.

Adding to 52152320 its reverse (2325125), we get a palindrome (54477445).

The spelling of 52152320 in words is "fifty-two million, one hundred fifty-two thousand, three hundred twenty".