99535565 has 8 divisors (see below), whose sum is σ = 119826168. Its totient is φ = 79372800.

The previous prime is 99535549. The next prime is 99535567. The reversal of 99535565 is 56553599.

It can be written as a sum of positive squares in 4 ways, for example, as 4024036 + 95511529 = 2006^2 + 9773^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99535565 - 2⁴ = 99535549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99535567) 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 in 7 ways as a sum of consecutive naturals, for example, 30236 + ... + 33365.

It is an arithmetic number, because the mean of its divisors is an integer number (14978271).

Almost surely, 2^99535565 is an apocalyptic number.

It is an amenable number.

99535565 is a deficient number, since it is larger than the sum of its proper divisors (20290603).

99535565 is a wasteful number, since it uses less digits than its factorization.

99535565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63919.

The product of its digits is 911250, while the sum is 47.

The square root of 99535565 is about 9976.7512247224. The cubic root of 99535565 is about 463.4391959453.

The spelling of 99535565 in words is "ninety-nine million, five hundred thirty-five thousand, five hundred sixty-five".