55511251016015 has 8 divisors (see below), whose sum is σ = 67416073523568. Its totient is φ = 43873952609920.

The previous prime is 55511251016009. The next prime is 55511251016027. The reversal of 55511251016015 is 51061015211555.

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

It is not a de Polignac number, because 55511251016015 - 2¹⁰ = 55511251014991 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 55511251016015.

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, 66881024906 + ... + 66881025735.

It is an arithmetic number, because the mean of its divisors is an integer number (8427009190446).

Almost surely, 2^{55511251016015} is an apocalyptic number.

55511251016015 is a deficient number, since it is larger than the sum of its proper divisors (11904822507553).

55511251016015 is a wasteful number, since it uses less digits than its factorization.

55511251016015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133762050729.

The product of its (nonzero) digits is 37500, while the sum is 38.

The spelling of 55511251016015 in words is "fifty-five trillion, five hundred eleven billion, two hundred fifty-one million, sixteen thousand, fifteen".