52640352 has 36 divisors (see below), whose sum is σ = 149696820. Its totient is φ = 17546688.

The previous prime is 52640327. The next prime is 52640363. The reversal of 52640352 is 25304625.

It is a tau number, because it is divible by the number of its divisors (36).

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 5 ways as a sum of consecutive naturals, for example, 91102 + ... + 91677.

It is an arithmetic number, because the mean of its divisors is an integer number (4158245).

Almost surely, 2^52640352 is an apocalyptic number.

It is an amenable number.

52640352 is an abundant number, since it is smaller than the sum of its proper divisors (97056468).

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

52640352 is a wasteful number, since it uses less digits than its factorization.

52640352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182795 (or 182784 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 52640352 is about 7255.3671168315. The cubic root of 52640352 is about 374.7769980800.

Adding to 52640352 its reverse (25304625), we get a palindrome (77944977).

The spelling of 52640352 in words is "fifty-two million, six hundred forty thousand, three hundred fifty-two".