55855899 has 60 divisors (see below), whose sum is σ = 94626840. Its totient is φ = 32788800.

The previous prime is 55855873. The next prime is 55855907. The reversal of 55855899 is 99855855.

55855899 is a `hidden beast` number, since 5 + 58 + 5 + 589 + 9 = 666.

55855899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55855899 - 2⁵ = 55855867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55855399) 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 59 ways as a sum of consecutive naturals, for example, 401772 + ... + 401910.

It is an arithmetic number, because the mean of its divisors is an integer number (1577114).

Almost surely, 2^55855899 is an apocalyptic number.

55855899 is a deficient number, since it is larger than the sum of its proper divisors (38770941).

55855899 is a wasteful number, since it uses less digits than its factorization.

55855899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 194 counting only the distinct ones).

The product of its digits is 3240000, while the sum is 54.

The square root of 55855899 is about 7473.6804186425. The cubic root of 55855899 is about 382.2577936061.

The spelling of 55855899 in words is "fifty-five million, eight hundred fifty-five thousand, eight hundred ninety-nine".