55000099 has 24 divisors (see below), whose sum is σ = 70884288. Its totient is φ = 42189840.

The previous prime is 55000091. The next prime is 55000111. The reversal of 55000099 is 99000055.

55000099 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 55000099 - 2³ = 55000091 is a prime.

It is a Duffinian number.

55000099 is a modest number, since divided by 99 gives 55 as remainder.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (55000091) 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 23 ways as a sum of consecutive naturals, for example, 35352 + ... + 36874.

It is an arithmetic number, because the mean of its divisors is an integer number (2953512).

Almost surely, 2^55000099 is an apocalyptic number.

55000099 is a deficient number, since it is larger than the sum of its proper divisors (15884189).

55000099 is a wasteful number, since it uses less digits than its factorization.

55000099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615 (or 1608 counting only the distinct ones).

The product of its (nonzero) digits is 2025, while the sum is 28.

The square root of 55000099 is about 7416.2051616713. The cubic root of 55000099 is about 380.2954742531.

The spelling of 55000099 in words is "fifty-five million, ninety-nine", and thus it is an aban number and an uban number.