52020071040 has 256 divisors, whose sum is σ = 189789131520. Its totient is φ = 11872272384.

The previous prime is 52020071011. The next prime is 52020071041. The reversal of 52020071040 is 4017002025.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 52020070998 and 52020071016.

It is not an unprimeable number, because it can be changed into a prime (52020071041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10171524 + ... + 10176636.

It is an arithmetic number, because the mean of its divisors is an integer number (741363795).

Almost surely, 2^52020071040 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 52020071040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94894565760).

52020071040 is an abundant number, since it is smaller than the sum of its proper divisors (137769060480).

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

52020071040 is a wasteful number, since it uses less digits than its factorization.

52020071040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5899 (or 5887 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

Adding to 52020071040 its reverse (4017002025), we get a palindrome (56037073065).

The spelling of 52020071040 in words is "fifty-two billion, twenty million, seventy-one thousand, forty".