52532340 has 192 divisors, whose sum is σ = 183859200. Its totient is φ = 10934784.

The previous prime is 52532327. The next prime is 52532419. The reversal of 52532340 is 4323525.

It is a self number, because there is not a number n which added to its sum of digits gives 52532340.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 231307 + ... + 231533.

It is an arithmetic number, because the mean of its divisors is an integer number (957600).

Almost surely, 2^52532340 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 52532340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91929600).

52532340 is an abundant number, since it is smaller than the sum of its proper divisors (131326860).

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

52532340 is a wasteful number, since it uses less digits than its factorization.

52532340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 52532340 is about 7247.9197015420. The cubic root of 52532340 is about 374.5204893356.

Adding to 52532340 its reverse (4323525), we get a palindrome (56855865).

The spelling of 52532340 in words is "fifty-two million, five hundred thirty-two thousand, three hundred forty".