5515121021552 has 20 divisors (see below), whose sum is σ = 10769685148416. Its totient is φ = 2735847434880.

The previous prime is 5515121021551. The next prime is 5515121021567. The reversal of 5515121021552 is 2551201215155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5515121021551) 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, 1357065149 + ... + 1357069212.

Almost surely, 2^{5515121021552} is an apocalyptic number.

It is an amenable number.

5515121021552 is a deficient number, since it is larger than the sum of its proper divisors (5254564126864).

5515121021552 is a wasteful number, since it uses less digits than its factorization.

5515121021552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2714134496 (or 2714134490 counting only the distinct ones).

The product of its (nonzero) digits is 25000, while the sum is 35.

The spelling of 5515121021552 in words is "five trillion, five hundred fifteen billion, one hundred twenty-one million, twenty-one thousand, five hundred fifty-two".