55055005 has 16 divisors (see below), whose sum is σ = 67995648. Its totient is φ = 42768000.

The previous prime is 55054973. The next prime is 55055009. The reversal of 55055005 is 50055055.

It is not a de Polignac number, because 55055005 - 2⁵ = 55054973 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 (55055009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55060 + ... + 56050.

It is an arithmetic number, because the mean of its divisors is an integer number (4249728).

Almost surely, 2^55055005 is an apocalyptic number.

It is an amenable number.

55055005 is a deficient number, since it is larger than the sum of its proper divisors (12940643).

55055005 is a wasteful number, since it uses less digits than its factorization.

55055005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308.

The product of its (nonzero) digits is 3125, while the sum is 25.

The square root of 55055005 is about 7419.9059967091. The cubic root of 55055005 is about 380.4219804430.

It can be divided in two parts, 550 and 55005, that added together give a palindrome (55555).

The spelling of 55055005 in words is "fifty-five million, fifty-five thousand, five".