55550005 has 16 divisors (see below), whose sum is σ = 77806080. Its totient is φ = 37279872.

The previous prime is 55549979. The next prime is 55550017. The reversal of 55550005 is 50005555.

55550005 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 55550005 - 2¹³ = 55541813 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 15240 + ... + 18529.

It is an arithmetic number, because the mean of its divisors is an integer number (4862880).

Almost surely, 2^55550005 is an apocalyptic number.

It is an amenable number.

55550005 is a deficient number, since it is larger than the sum of its proper divisors (22256075).

55550005 is a wasteful number, since it uses less digits than its factorization.

55550005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33828.

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

The square root of 55550005 is about 7453.1875731126. The cubic root of 55550005 is about 381.5587061612.

The spelling of 55550005 in words is "fifty-five million, five hundred fifty thousand, five".