8505242105 has 16 divisors (see below), whose sum is σ = 10695784320. Its totient is φ = 6480405888.

The previous prime is 8505242063. The next prime is 8505242111. The reversal of 8505242105 is 5012425058.

It is a cyclic number.

It is not a de Polignac number, because 8505242105 - 2¹⁰ = 8505241081 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131915 + ... + 185504.

It is an arithmetic number, because the mean of its divisors is an integer number (668486520).

Almost surely, 2^8505242105 is an apocalyptic number.

It is an amenable number.

8505242105 is a deficient number, since it is larger than the sum of its proper divisors (2190542215).

8505242105 is a wasteful number, since it uses less digits than its factorization.

8505242105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317680.

The product of its (nonzero) digits is 16000, while the sum is 32.

The square root of 8505242105 is about 92223.8694970017. The cubic root of 8505242105 is about 2041.2470032644.

The spelling of 8505242105 in words is "eight billion, five hundred five million, two hundred forty-two thousand, one hundred five".