99509530 has 16 divisors (see below), whose sum is σ = 181276704. Its totient is φ = 39323920.

The previous prime is 99509521. The next prime is 99509533. The reversal of 99509530 is 3590599.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (99509533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59116 + ... + 60775.

It is an arithmetic number, because the mean of its divisors is an integer number (11329794).

Almost surely, 2^99509530 is an apocalyptic number.

99509530 is a deficient number, since it is larger than the sum of its proper divisors (81767174).

99509530 is a wasteful number, since it uses less digits than its factorization.

99509530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119981.

The product of its (nonzero) digits is 54675, while the sum is 40.

The square root of 99509530 is about 9975.4463559281. The cubic root of 99509530 is about 463.3987859619.

The spelling of 99509530 in words is "ninety-nine million, five hundred nine thousand, five hundred thirty".