52115320 has 32 divisors (see below), whose sum is σ = 121305600. Its totient is φ = 20126848.

The previous prime is 52115317. The next prime is 52115321. The reversal of 52115320 is 2351125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52115321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21304 + ... + 23623.

It is an arithmetic number, because the mean of its divisors is an integer number (3790800).

Almost surely, 2^52115320 is an apocalyptic number.

It is an amenable number.

52115320 is an abundant number, since it is smaller than the sum of its proper divisors (69190280).

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

52115320 is a wasteful number, since it uses less digits than its factorization.

52115320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44967 (or 44963 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 52115320 is about 7219.0941259967. The cubic root of 52115320 is about 373.5268306744.

Adding to 52115320 its reverse (2351125), we get a palindrome (54466445).

The spelling of 52115320 in words is "fifty-two million, one hundred fifteen thousand, three hundred twenty".