99955009 has 8 divisors (see below), whose sum is σ = 124619328. Its totient is φ = 77886960.

The previous prime is 99955003. The next prime is 99955021. The reversal of 99955009 is 90055999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99955009 - 2¹¹ = 99952961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99955009.

It is not an unprimeable number, because it can be changed into a prime (99955003) 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 7 ways as a sum of consecutive naturals, for example, 648982 + ... + 649135.

It is an arithmetic number, because the mean of its divisors is an integer number (15577416).

Almost surely, 2^99955009 is an apocalyptic number.

It is an amenable number.

99955009 is a deficient number, since it is larger than the sum of its proper divisors (24664319).

99955009 is a wasteful number, since it uses less digits than its factorization.

99955009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298135.

The product of its (nonzero) digits is 164025, while the sum is 46.

The square root of 99955009 is about 9997.7501969193. The cubic root of 99955009 is about 464.0892630115.

The spelling of 99955009 in words is "ninety-nine million, nine hundred fifty-five thousand, nine".