55556159 has 4 divisors (see below), whose sum is σ = 55669800. Its totient is φ = 55442520.

The previous prime is 55556147. The next prime is 55556191. The reversal of 55556159 is 95165555.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55556159 - 2⁴ = 55556143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55556359) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 56084 + ... + 57065.

It is an arithmetic number, because the mean of its divisors is an integer number (13917450).

Almost surely, 2^55556159 is an apocalyptic number.

55556159 is a deficient number, since it is larger than the sum of its proper divisors (113641).

55556159 is a wasteful number, since it uses less digits than its factorization.

55556159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113640.

The product of its digits is 168750, while the sum is 41.

The square root of 55556159 is about 7453.6004051733. The cubic root of 55556159 is about 381.5727957223.

The spelling of 55556159 in words is "fifty-five million, five hundred fifty-six thousand, one hundred fifty-nine".