5021365315521 has 8 divisors (see below), whose sum is σ = 6695812831360. Its totient is φ = 3347247338352.

The previous prime is 5021365315493. The next prime is 5021365315541. The reversal of 5021365315521 is 1255135631205.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-5021365315521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5021365315521.

It is not an unprimeable number, because it can be changed into a prime (5021365315541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82349110 + ... + 82410063.

It is an arithmetic number, because the mean of its divisors is an integer number (836976603920).

Almost surely, 2^{5021365315521} is an apocalyptic number.

It is an amenable number.

5021365315521 is a deficient number, since it is larger than the sum of its proper divisors (1674447515839).

5021365315521 is a wasteful number, since it uses less digits than its factorization.

5021365315521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164769335.

The product of its (nonzero) digits is 135000, while the sum is 39.

The spelling of 5021365315521 in words is "five trillion, twenty-one billion, three hundred sixty-five million, three hundred fifteen thousand, five hundred twenty-one".