55805055 has 8 divisors (see below), whose sum is σ = 89288112. Its totient is φ = 29762688.

The previous prime is 55805051. The next prime is 55805063. The reversal of 55805055 is 55050855.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55805055 - 2² = 55805051 is a prime.

It is a super-2 number, since 2×55805055² = 6228408327106050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55805051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1860154 + ... + 1860183.

It is an arithmetic number, because the mean of its divisors is an integer number (11161014).

Almost surely, 2^55805055 is an apocalyptic number.

55805055 is a deficient number, since it is larger than the sum of its proper divisors (33483057).

55805055 is a wasteful number, since it uses less digits than its factorization.

55805055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3720345.

The product of its (nonzero) digits is 25000, while the sum is 33.

The square root of 55805055 is about 7470.2781072728. The cubic root of 55805055 is about 382.1417723455.

The spelling of 55805055 in words is "fifty-five million, eight hundred five thousand, fifty-five".