98555555 has 16 divisors (see below), whose sum is σ = 135413760. Its totient is φ = 67455072.

The previous prime is 98555521. The next prime is 98555591. The reversal of 98555555 is 55555589.

It is a cyclic number.

It is not a de Polignac number, because 98555555 - 2⁶ = 98555491 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

98555555 is a modest number, since divided by 55555 gives 985 as remainder.

It is a nialpdrome 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, 18926 + ... + 23564.

It is an arithmetic number, because the mean of its divisors is an integer number (8463360).

Almost surely, 2^98555555 is an apocalyptic number.

98555555 is a deficient number, since it is larger than the sum of its proper divisors (36858205).

98555555 is a wasteful number, since it uses less digits than its factorization.

98555555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5258.

The product of its digits is 1125000, while the sum is 47.

The square root of 98555555 is about 9927.5150465764. The cubic root of 98555555 is about 461.9131959003.

The spelling of 98555555 in words is "ninety-eight million, five hundred fifty-five thousand, five hundred fifty-five".