55115550005 has 16 divisors (see below), whose sum is σ = 66319046400. Its totient is φ = 43972346880.

The previous prime is 55115549963. The next prime is 55115550013. The reversal of 55115550005 is 50005551155.

It is not a de Polignac number, because 55115550005 - 2¹⁰ = 55115548981 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2889941 + ... + 2908949.

It is an arithmetic number, because the mean of its divisors is an integer number (4144940400).

Almost surely, 2^55115550005 is an apocalyptic number.

It is an amenable number.

55115550005 is a deficient number, since it is larger than the sum of its proper divisors (11203496395).

55115550005 is a wasteful number, since it uses less digits than its factorization.

55115550005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20564.

The product of its (nonzero) digits is 15625, while the sum is 32.

The spelling of 55115550005 in words is "fifty-five billion, one hundred fifteen million, five hundred fifty thousand, five".