52444040520 has 64 divisors (see below), whose sum is σ = 166586958720. Its totient is φ = 13162425344.

The previous prime is 52444040461. The next prime is 52444040549. The reversal of 52444040520 is 2504044425.

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

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, 12851892 + ... + 12855971.

It is an arithmetic number, because the mean of its divisors is an integer number (2602921230).

Almost surely, 2^52444040520 is an apocalyptic number.

It is an amenable number.

52444040520 is an abundant number, since it is smaller than the sum of its proper divisors (114142918200).

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

52444040520 is a wasteful number, since it uses less digits than its factorization.

52444040520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25707894 (or 25707890 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 30.

Adding to 52444040520 its reverse (2504044425), we get a palindrome (54948084945).

The spelling of 52444040520 in words is "fifty-two billion, four hundred forty-four million, forty thousand, five hundred twenty".