500021325513440 has 48 divisors (see below), whose sum is σ = 1181305452261312. Its totient is φ = 200007671668224.

The previous prime is 500021325513421. The next prime is 500021325513497. The reversal of 500021325513440 is 44315523120005.

It is a self number, because there is not a number n which added to its sum of digits gives 500021325513440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31356377 + ... + 44533863.

It is an arithmetic number, because the mean of its divisors is an integer number (24610530255444).

Almost surely, 2^{500021325513440} is an apocalyptic number.

It is an amenable number.

500021325513440 is an abundant number, since it is smaller than the sum of its proper divisors (681284126747872).

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

500021325513440 is a wasteful number, since it uses less digits than its factorization.

500021325513440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13414659 (or 13414651 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 500021325513440 its reverse (44315523120005), we get a palindrome (544336848633445).

The spelling of 500021325513440 in words is "five hundred trillion, twenty-one billion, three hundred twenty-five million, five hundred thirteen thousand, four hundred forty".