99888125 has 20 divisors (see below), whose sum is σ = 126634464. Its totient is φ = 78750000.

The previous prime is 99888101. The next prime is 99888133. The reversal of 99888125 is 52188899.

It is not a de Polignac number, because 99888125 - 2¹⁰ = 99887101 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 43250 + ... + 45500.

Almost surely, 2^99888125 is an apocalyptic number.

It is an amenable number.

99888125 is a deficient number, since it is larger than the sum of its proper divisors (26746339).

99888125 is an equidigital number, since it uses as much as digits as its factorization.

99888125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2342 (or 2327 counting only the distinct ones).

The product of its digits is 414720, while the sum is 50.

The square root of 99888125 is about 9994.4046846223. The cubic root of 99888125 is about 463.9857261884.

The spelling of 99888125 in words is "ninety-nine million, eight hundred eighty-eight thousand, one hundred twenty-five".