52256563536 has 80 divisors (see below), whose sum is σ = 137451414848. Its totient is φ = 17103052800.

The previous prime is 52256563529. The next prime is 52256563549. The reversal of 52256563536 is 63536565225.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1673991 + ... + 1704921.

Almost surely, 2^52256563536 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 52256563536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68725707424).

52256563536 is an abundant number, since it is smaller than the sum of its proper divisors (85194851312).

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

52256563536 is a wasteful number, since it uses less digits than its factorization.

52256563536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31580 (or 31574 counting only the distinct ones).

The product of its digits is 4860000, while the sum is 48.

The spelling of 52256563536 in words is "fifty-two billion, two hundred fifty-six million, five hundred sixty-three thousand, five hundred thirty-six".