52320320 has 56 divisors (see below), whose sum is σ = 134182104. Its totient is φ = 19316736.

The previous prime is 52320311. The next prime is 52320347. The reversal of 52320320 is 2302325.

It can be written as a sum of positive squares in 4 ways, for example, as 7054336 + 45265984 = 2656^2 + 6728^2 .

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, 2129 + ... + 10448.

It is an arithmetic number, because the mean of its divisors is an integer number (2396109).

Almost surely, 2^52320320 is an apocalyptic number.

It is an amenable number.

52320320 is an abundant number, since it is smaller than the sum of its proper divisors (81861784).

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

52320320 is a wasteful number, since it uses less digits than its factorization.

52320320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12607 (or 12597 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 52320320 is about 7233.2786480268. The cubic root of 52320320 is about 374.0159563097.

Adding to 52320320 its reverse (2302325), we get a palindrome (54622645).

The spelling of 52320320 in words is "fifty-two million, three hundred twenty thousand, three hundred twenty".