52685856 has 144 divisors (see below), whose sum is σ = 164011680. Its totient is φ = 16450560.

The previous prime is 52685849. The next prime is 52685887. The reversal of 52685856 is 65858625.

52685856 is a `hidden beast` number, since 5 + 2 + 68 + 585 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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 23 ways as a sum of consecutive naturals, for example, 249591 + ... + 249801.

It is an arithmetic number, because the mean of its divisors is an integer number (1138970).

Almost surely, 2^52685856 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 52685856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82005840).

52685856 is an abundant number, since it is smaller than the sum of its proper divisors (111325824).

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

52685856 is a wasteful number, since it uses less digits than its factorization.

52685856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264 (or 233 counting only the distinct ones).

The product of its digits is 576000, while the sum is 45.

The square root of 52685856 is about 7258.5023248601. The cubic root of 52685856 is about 374.8849567104.

The spelling of 52685856 in words is "fifty-two million, six hundred eighty-five thousand, eight hundred fifty-six".