55580005 has 16 divisors (see below), whose sum is σ = 72019584. Its totient is φ = 40933440.

The previous prime is 55580003. The next prime is 55580009. The reversal of 55580005 is 50008555.

It is not a de Polignac number, because 55580005 - 2¹ = 55580003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55580003) 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, 29440 + ... + 31270.

It is an arithmetic number, because the mean of its divisors is an integer number (4501224).

Almost surely, 2^55580005 is an apocalyptic number.

It is an amenable number.

55580005 is a deficient number, since it is larger than the sum of its proper divisors (16439579).

55580005 is a wasteful number, since it uses less digits than its factorization.

55580005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 55580005 is about 7455.1998631827. The cubic root of 55580005 is about 381.6273812296.

The spelling of 55580005 in words is "fifty-five million, five hundred eighty thousand, five".