9905001505 has 16 divisors (see below), whose sum is σ = 13587859584. Its totient is φ = 6790072320.

The previous prime is 9905001503. The next prime is 9905001517. The reversal of 9905001505 is 5051005099.

It is not a de Polignac number, because 9905001505 - 2¹ = 9905001503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9905001503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90849 + ... + 167521.

It is an arithmetic number, because the mean of its divisors is an integer number (849241224).

Almost surely, 2^9905001505 is an apocalyptic number.

It is an amenable number.

9905001505 is a deficient number, since it is larger than the sum of its proper divisors (3682858079).

9905001505 is a wasteful number, since it uses less digits than its factorization.

9905001505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80376.

The product of its (nonzero) digits is 10125, while the sum is 34.

The square root of 9905001505 is about 99523.8740453767. The cubic root of 9905001505 is about 2147.5907033426.

The spelling of 9905001505 in words is "nine billion, nine hundred five million, one thousand, five hundred five".