99005555 has 16 divisors (see below), whose sum is σ = 129808224. Its totient is φ = 71892480.

The previous prime is 99005549. The next prime is 99005563. The reversal of 99005555 is 55550099.

It is a happy number.

It is not a de Polignac number, because 99005555 - 2¹² = 99001459 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54827 + ... + 56603.

It is an arithmetic number, because the mean of its divisors is an integer number (8113014).

Almost surely, 2^99005555 is an apocalyptic number.

99005555 is a deficient number, since it is larger than the sum of its proper divisors (30802669).

99005555 is a wasteful number, since it uses less digits than its factorization.

99005555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2806.

The product of its (nonzero) digits is 50625, while the sum is 38.

The square root of 99005555 is about 9950.1535164037. The cubic root of 99005555 is about 462.6151532114.

The spelling of 99005555 in words is "ninety-nine million, five thousand, five hundred fifty-five".