55006005 has 16 divisors (see below), whose sum is σ = 89000640.
Its totient is φ = 29006208.
The previous prime is 55005991. The next prime is 55006037. The reversal of 55006005 is 50060055.
It is not a de Polignac number, because 55006005 - 212 = 55001909 is a prime.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19267 + ... + 21936.
It is an arithmetic number, because the mean of its divisors is an integer number (5562540).
Almost surely, 255006005 is an apocalyptic number.
It is an amenable number.
55006005 is a deficient number, since it is larger than the sum of its proper divisors (33994635).
55006005 is a wasteful number, since it uses less digits than its factorization.
55006005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 41300.
The product of its (nonzero) digits is 750, while the sum is 21.
The square root of 55006005 is about 7416.6033330629.
The cubic root of 55006005 is about 380.3090860146.
The spelling of 55006005 in words is "fifty-five million, six thousand, five".