52000061640 has 64 divisors (see below), whose sum is σ = 156015192960. Its totient is φ = 13865349120.

The previous prime is 52000061623. The next prime is 52000061651. The reversal of 52000061640 is 4616000025.

52000061640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 52000061640.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2362285 + ... + 2384195.

It is an arithmetic number, because the mean of its divisors is an integer number (2437737390).

Almost surely, 2^52000061640 is an apocalyptic number.

It is an amenable number.

52000061640 is an abundant number, since it is smaller than the sum of its proper divisors (104015131320).

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

52000061640 is a wasteful number, since it uses less digits than its factorization.

52000061640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41702 (or 41698 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 52000061640 its reverse (4616000025), we get a palindrome (56616061665).

The spelling of 52000061640 in words is "fifty-two billion, sixty-one thousand, six hundred forty".