52891863040 has 192 divisors, whose sum is σ = 132513479280. Its totient is φ = 20242759680.

The previous prime is 52891863029. The next prime is 52891863049. The reversal of 52891863040 is 4036819825.

It can be written as a sum of positive squares in 8 ways, for example, as 11900191744 + 40991671296 = 109088^2 + 202464^2 .

It is not an unprimeable number, because it can be changed into a prime (52891863049) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 22250332 + ... + 22252708.

Almost surely, 2^52891863040 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 52891863040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66256739640).

52891863040 is an abundant number, since it is smaller than the sum of its proper divisors (79621616240).

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

52891863040 is a wasteful number, since it uses less digits than its factorization.

52891863040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2498 (or 2478 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 52891863040 in words is "fifty-two billion, eight hundred ninety-one million, eight hundred sixty-three thousand, forty".