98555111 has 2 divisors, whose sum is σ = 98555112. Its totient is φ = 98555110.

The previous prime is 98555089. The next prime is 98555123. The reversal of 98555111 is 11155589.

It is a strong prime.

It is an emirp because it is prime and its reverse (11155589) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98555111 - 2¹⁰ = 98554087 is a prime.

It is a Chen prime.

It is equal to p_5683148 and since 98555111 and 5683148 have the same sum of digits, it is a Honaker prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98555141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49277555 + 49277556.

It is an arithmetic number, because the mean of its divisors is an integer number (49277556).

Almost surely, 2^98555111 is an apocalyptic number.

98555111 is a deficient number, since it is larger than the sum of its proper divisors (1).

98555111 is an equidigital number, since it uses as much as digits as its factorization.

98555111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9000, while the sum is 35.

The square root of 98555111 is about 9927.4926844597. The cubic root of 98555111 is about 461.9125022483.

The spelling of 98555111 in words is "ninety-eight million, five hundred fifty-five thousand, one hundred eleven".