55856888590559 has 32 divisors (see below), whose sum is σ = 67451751198720. Its totient is φ = 45236817585792.

The previous prime is 55856888590543. The next prime is 55856888590583. The reversal of 55856888590559 is 95509588865855.

It is not a de Polignac number, because 55856888590559 - 2⁴ = 55856888590543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55856888590519) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71867462 + ... + 72640524.

It is an arithmetic number, because the mean of its divisors is an integer number (2107867224960).

Almost surely, 2^{55856888590559} is an apocalyptic number.

55856888590559 is a deficient number, since it is larger than the sum of its proper divisors (11594862608161).

55856888590559 is a wasteful number, since it uses less digits than its factorization.

55856888590559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780719.

The product of its (nonzero) digits is 31104000000, while the sum is 86.

The spelling of 55856888590559 in words is "fifty-five trillion, eight hundred fifty-six billion, eight hundred eighty-eight million, five hundred ninety thousand, five hundred fifty-nine".