55107899 has 12 divisors (see below), whose sum is σ = 69933528. Its totient is φ = 42940800.

The previous prime is 55107887. The next prime is 55107907. The reversal of 55107899 is 99870155.

It is a happy number.

55107899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-55107899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55107499) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 50582 + ... + 51659.

It is an arithmetic number, because the mean of its divisors is an integer number (5827794).

Almost surely, 2^55107899 is an apocalyptic number.

55107899 is a deficient number, since it is larger than the sum of its proper divisors (14825629).

55107899 is a wasteful number, since it uses less digits than its factorization.

55107899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102266 (or 102259 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 44.

The square root of 55107899 is about 7423.4694718844. The cubic root of 55107899 is about 380.5437713659.

The spelling of 55107899 in words is "fifty-five million, one hundred seven thousand, eight hundred ninety-nine".