55871755717855 has 24 divisors (see below), whose sum is σ = 84223208625696. Its totient is φ = 34829146418880.

The previous prime is 55871755717837. The next prime is 55871755717861.

55871755717855 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55871755717855 - 2⁵ = 55871755717823 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6596425012 + ... + 6596433481.

It is an arithmetic number, because the mean of its divisors is an integer number (3509300359404).

Almost surely, 2^{55871755717855} is an apocalyptic number.

55871755717855 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55871755717855 is a deficient number, since it is larger than the sum of its proper divisors (28351452907841).

55871755717855 is a wasteful number, since it uses less digits than its factorization.

55871755717855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13192858527 (or 13192858516 counting only the distinct ones).

The product of its digits is 2401000000, while the sum is 76.

The spelling of 55871755717855 in words is "fifty-five trillion, eight hundred seventy-one billion, seven hundred fifty-five million, seven hundred seventeen thousand, eight hundred fifty-five".