52821554808 has 128 divisors (see below), whose sum is σ = 154127635200. Its totient is φ = 14915404800.

The previous prime is 52821554801. The next prime is 52821554923. The reversal of 52821554808 is 80845512825.

52821554808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52821554801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 219660 + ... + 392292.

It is an arithmetic number, because the mean of its divisors is an integer number (1204122150).

Almost surely, 2^52821554808 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 52821554808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77063817600).

52821554808 is an abundant number, since it is smaller than the sum of its proper divisors (101306080392).

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

52821554808 is a wasteful number, since it uses less digits than its factorization.

52821554808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172733 (or 172729 counting only the distinct ones).

The product of its (nonzero) digits is 1024000, while the sum is 48.

The spelling of 52821554808 in words is "fifty-two billion, eight hundred twenty-one million, five hundred fifty-four thousand, eight hundred eight".