99000555 has 16 divisors (see below), whose sum is σ = 161390880. Its totient is φ = 51803648.

The previous prime is 99000547. The next prime is 99000557. The reversal of 99000555 is 55500099.

It is a cyclic number.

It is not a de Polignac number, because 99000555 - 2³ = 99000547 is a prime.

It is a super-2 number, since 2×99000555² = 19602219780616050, which contains 22 as substring.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (99000557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61470 + ... + 63059.

It is an arithmetic number, because the mean of its divisors is an integer number (10086930).

Almost surely, 2^99000555 is an apocalyptic number.

99000555 is a deficient number, since it is larger than the sum of its proper divisors (62390325).

99000555 is a wasteful number, since it uses less digits than its factorization.

99000555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124590.

The product of its (nonzero) digits is 10125, while the sum is 33.

The square root of 99000555 is about 9949.9022608265. The cubic root of 99000555 is about 462.6073653834.

The spelling of 99000555 in words is "ninety-nine million, five hundred fifty-five", and thus it is an aban number.