55886139554154 has 128 divisors (see below), whose sum is σ = 138218736918528. Its totient is φ = 14669367390720.

The previous prime is 55886139554149. The next prime is 55886139554177. The reversal of 55886139554154 is 45145593168855.

It is a Smith number, since the sum of its digits (69) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 140813437 + ... + 141209759.

It is an arithmetic number, because the mean of its divisors is an integer number (1079833882176).

Almost surely, 2^{55886139554154} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55886139554154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69109368459264).

55886139554154 is an abundant number, since it is smaller than the sum of its proper divisors (82332597364374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55886139554154 is a wasteful number, since it uses less digits than its factorization.

55886139554154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397572.

The product of its digits is 518400000, while the sum is 69.

The spelling of 55886139554154 in words is "fifty-five trillion, eight hundred eighty-six billion, one hundred thirty-nine million, five hundred fifty-four thousand, one hundred fifty-four".