52805280000 has 720 divisors, whose sum is σ = 195624830016. Its totient is φ = 12533760000.

The previous prime is 52805279993. The next prime is 52805280041. The reversal of 52805280000 is 8250825.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 52805280000.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 385439932 + ... + 385440068.

Almost surely, 2^52805280000 is an apocalyptic number.

52805280000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52805280000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97812415008).

52805280000 is an abundant number, since it is smaller than the sum of its proper divisors (142819550016).

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

52805280000 is a wasteful number, since it uses less digits than its factorization.

52805280000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

52805280000 divided by its reverse (8250825) gives a square (6400 = 80²).

The spelling of 52805280000 in words is "fifty-two billion, eight hundred five million, two hundred eighty thousand".