52404400000 has 96 divisors (see below), whose sum is σ = 130491882360. Its totient is φ = 20961600000.

The previous prime is 52404399997. The next prime is 52404400001. The reversal of 52404400000 is 440425.

It is a super-2 number, since 2×52404400000² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52404400001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 334495 + ... + 465505.

Almost surely, 2^52404400000 is an apocalyptic number.

52404400000 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 52404400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65245941180).

52404400000 is an abundant number, since it is smaller than the sum of its proper divisors (78087482360).

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

52404400000 is an frugal number, since it uses more digits than its factorization.

52404400000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131050 (or 131018 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

Adding to 52404400000 its reverse (440425), we get a palindrome (52404840425).

The spelling of 52404400000 in words is "fifty-two billion, four hundred four million, four hundred thousand".