5304020520040 has 128 divisors (see below), whose sum is σ = 13085984419200. Its totient is φ = 1918826542080.

The previous prime is 5304020519977. The next prime is 5304020520091. The reversal of 5304020520040 is 400250204035.

It is a junction number, because it is equal to n+sod(n) for n = 5304020519987 and 5304020520014.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 80285902 + ... + 80351938.

It is an arithmetic number, because the mean of its divisors is an integer number (102234253275).

Almost surely, 2^{5304020520040} 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 5304020520040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6542992209600).

5304020520040 is an abundant number, since it is smaller than the sum of its proper divisors (7781963899160).

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

5304020520040 is a wasteful number, since it uses less digits than its factorization.

5304020520040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66995 (or 66991 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 5304020520040 its reverse (400250204035), we get a palindrome (5704270724075).

The spelling of 5304020520040 in words is "five trillion, three hundred four billion, twenty million, five hundred twenty thousand, forty".