52318530 has 96 divisors (see below), whose sum is σ = 151968960. Its totient is φ = 12378240.

The previous prime is 52318507. The next prime is 52318531. The reversal of 52318530 is 3581325.

It is a junction number, because it is equal to n+sod(n) for n = 52318494 and 52318503.

It is not an unprimeable number, because it can be changed into a prime (52318531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41956 + ... + 43184.

It is an arithmetic number, because the mean of its divisors is an integer number (1583010).

Almost surely, 2^52318530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52318530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75984480).

52318530 is an abundant number, since it is smaller than the sum of its proper divisors (99650430).

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

52318530 is a wasteful number, since it uses less digits than its factorization.

52318530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296 (or 1293 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 52318530 is about 7233.1549133141. The cubic root of 52318530 is about 374.0116909421.

Adding to 52318530 its reverse (3581325), we get a palindrome (55899855).

The spelling of 52318530 in words is "fifty-two million, three hundred eighteen thousand, five hundred thirty".