5516515521001 has 4 divisors (see below), whose sum is σ = 5519918678404. Its totient is φ = 5513112363600.

The previous prime is 5516515520993. The next prime is 5516515521217. The reversal of 5516515521001 is 1001255156155.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4633148625625 + 883366895376 = 2152475^2 + 939876^2 .

It is a cyclic number.

It is not a de Polignac number, because 5516515521001 - 2³ = 5516515520993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5516515524001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1701576270 + ... + 1701579511.

It is an arithmetic number, because the mean of its divisors is an integer number (1379979669601).

Almost surely, 2^{5516515521001} is an apocalyptic number.

It is an amenable number.

5516515521001 is a deficient number, since it is larger than the sum of its proper divisors (3403157403).

5516515521001 is a wasteful number, since it uses less digits than its factorization.

5516515521001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3403157402.

The product of its (nonzero) digits is 37500, while the sum is 37.

The spelling of 5516515521001 in words is "five trillion, five hundred sixteen billion, five hundred fifteen million, five hundred twenty-one thousand, one".