99885501 has 32 divisors (see below), whose sum is σ = 151113600. Its totient is φ = 65197440.

The previous prime is 99885479. The next prime is 99885521. The reversal of 99885501 is 10558899.

99885501 is a `hidden beast` number, since 9 + 98 + 8 + 550 + 1 = 666.

It is not a de Polignac number, because 99885501 - 2¹⁷ = 99754429 is a prime.

It is a super-2 number, since 2×99885501² = 19954226620042002, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99885521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 473286 + ... + 473496.

It is an arithmetic number, because the mean of its divisors is an integer number (4722300).

Almost surely, 2^99885501 is an apocalyptic number.

It is an amenable number.

99885501 is a deficient number, since it is larger than the sum of its proper divisors (51228099).

99885501 is a wasteful number, since it uses less digits than its factorization.

99885501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 45.

The square root of 99885501 is about 9994.2734103085. The cubic root of 99885501 is about 463.9816632790.

The spelling of 99885501 in words is "ninety-nine million, eight hundred eighty-five thousand, five hundred one".