55000006 has 4 divisors (see below), whose sum is σ = 82500012. Its totient is φ = 27500002.

The previous prime is 54999943. The next prime is 55000013. The reversal of 55000006 is 60000055.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13750000 + ... + 13750003.

It is an arithmetic number, because the mean of its divisors is an integer number (20625003).

Almost surely, 2^55000006 is an apocalyptic number.

55000006 is a deficient number, since it is larger than the sum of its proper divisors (27500006).

55000006 is a wasteful number, since it uses less digits than its factorization.

55000006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27500005.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 55000006 is about 7416.1988916156. The cubic root of 55000006 is about 380.2952599051.

The spelling of 55000006 in words is "fifty-five million, six", and thus it is an aban number and an uban number.