99888575249 has 2 divisors, whose sum is σ = 99888575250. Its totient is φ = 99888575248.

The previous prime is 99888575221. The next prime is 99888575273. The reversal of 99888575249 is 94257588899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65059684624 + 34828890625 = 255068^2 + 186625^2 .

It is an emirp because it is prime and its reverse (94257588899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99888575249 - 2²⁸ = 99620139793 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (99888575749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49944287624 + 49944287625.

It is an arithmetic number, because the mean of its divisors is an integer number (49944287625).

Almost surely, 2^99888575249 is an apocalyptic number.

It is an amenable number.

99888575249 is a deficient number, since it is larger than the sum of its proper divisors (1).

99888575249 is an equidigital number, since it uses as much as digits as its factorization.

99888575249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 522547200, while the sum is 74.

The spelling of 99888575249 in words is "ninety-nine billion, eight hundred eighty-eight million, five hundred seventy-five thousand, two hundred forty-nine".