55588555 has 16 divisors (see below), whose sum is σ = 77052384. Its totient is φ = 38049280.

The previous prime is 55588553. The next prime is 55588567.

55588555 is nontrivially palindromic in base 10.

55588555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55588555 - 2¹ = 55588553 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (55588553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28792 + ... + 30661.

It is an arithmetic number, because the mean of its divisors is an integer number (4815774).

Almost surely, 2^55588555 is an apocalyptic number.

55588555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55588555 is a deficient number, since it is larger than the sum of its proper divisors (21463829).

55588555 is a wasteful number, since it uses less digits than its factorization.

55588555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59486.

The product of its digits is 1000000, while the sum is 46.

The square root of 55588555 is about 7455.7732664024. The cubic root of 55588555 is about 381.6469490989.

The spelling of 55588555 in words is "fifty-five million, five hundred eighty-eight thousand, five hundred fifty-five".