52639856 has 20 divisors (see below), whose sum is σ = 102727800. Its totient is φ = 26129472.

The previous prime is 52639831. The next prime is 52639877. The reversal of 52639856 is 65893625.

It is a happy number.

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 3 ways as a sum of consecutive naturals, for example, 9611 + ... + 14058.

It is an arithmetic number, because the mean of its divisors is an integer number (5136390).

Almost surely, 2^52639856 is an apocalyptic number.

It is an amenable number.

52639856 is a deficient number, since it is larger than the sum of its proper divisors (50087944).

52639856 is a wasteful number, since it uses less digits than its factorization.

52639856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23816 (or 23810 counting only the distinct ones).

The product of its digits is 388800, while the sum is 44.

The square root of 52639856 is about 7255.3329351588. The cubic root of 52639856 is about 374.7758209730.

The spelling of 52639856 in words is "fifty-two million, six hundred thirty-nine thousand, eight hundred fifty-six".