55006899 has 4 divisors (see below), whose sum is σ = 73342536. Its totient is φ = 36671264.

The previous prime is 55006891. The next prime is 55006909. The reversal of 55006899 is 99860055.

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

It is a cyclic number.

It is not a de Polignac number, because 55006899 - 2³ = 55006891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55006899.

It is not an unprimeable number, because it can be changed into a prime (55006891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9167814 + ... + 9167819.

It is an arithmetic number, because the mean of its divisors is an integer number (18335634).

Almost surely, 2^55006899 is an apocalyptic number.

55006899 is a deficient number, since it is larger than the sum of its proper divisors (18335637).

55006899 is a wasteful number, since it uses less digits than its factorization.

55006899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18335636.

The product of its (nonzero) digits is 97200, while the sum is 42.

The square root of 55006899 is about 7416.6636029956. The cubic root of 55006899 is about 380.3111463623.

The spelling of 55006899 in words is "fifty-five million, six thousand, eight hundred ninety-nine".