52540332 has 48 divisors (see below), whose sum is σ = 133029120. Its totient is φ = 16043328.

The previous prime is 52540321. The next prime is 52540343. The reversal of 52540332 is 23304525.

52540332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (52540321) and next prime (52540343).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20473 + ... + 22895.

It is an arithmetic number, because the mean of its divisors is an integer number (2771440).

Almost surely, 2^52540332 is an apocalyptic number.

52540332 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52540332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66514560).

52540332 is an abundant number, since it is smaller than the sum of its proper divisors (80488788).

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

52540332 is a wasteful number, since it uses less digits than its factorization.

52540332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2582 (or 2580 counting only the distinct ones).

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

The square root of 52540332 is about 7248.4710111857. The cubic root of 52540332 is about 374.5394809128.

Adding to 52540332 its reverse (23304525), we get a palindrome (75844857).

The spelling of 52540332 in words is "fifty-two million, five hundred forty thousand, three hundred thirty-two".