99087555 has 32 divisors (see below), whose sum is σ = 184896000. Its totient is φ = 45294816.

The previous prime is 99087503. The next prime is 99087587. The reversal of 99087555 is 55578099.

It is not a de Polignac number, because 99087555 - 2¹⁰ = 99086531 is a prime.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 4485 + ... + 14774.

It is an arithmetic number, because the mean of its divisors is an integer number (5778000).

Almost surely, 2^99087555 is an apocalyptic number.

99087555 is a deficient number, since it is larger than the sum of its proper divisors (85808445).

99087555 is a wasteful number, since it uses less digits than its factorization.

99087555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19288 (or 19274 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 48.

The square root of 99087555 is about 9954.2732030018. The cubic root of 99087555 is about 462.7428361967.

The spelling of 99087555 in words is "ninety-nine million, eighty-seven thousand, five hundred fifty-five".