9982521505 has 8 divisors (see below), whose sum is σ = 13068028224. Its totient is φ = 7260015600.

The previous prime is 9982521503. The next prime is 9982521517. The reversal of 9982521505 is 5051252899.

It is a happy number.

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

It is not a de Polignac number, because 9982521505 - 2¹ = 9982521503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9982521503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90750141 + ... + 90750250.

It is an arithmetic number, because the mean of its divisors is an integer number (1633503528).

Almost surely, 2^9982521505 is an apocalyptic number.

It is an amenable number.

9982521505 is a deficient number, since it is larger than the sum of its proper divisors (3085506719).

9982521505 is a wasteful number, since it uses less digits than its factorization.

9982521505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181500407.

The product of its (nonzero) digits is 324000, while the sum is 46.

The square root of 9982521505 is about 99912.5693043673. The cubic root of 9982521505 is about 2153.1787488168.

The spelling of 9982521505 in words is "nine billion, nine hundred eighty-two million, five hundred twenty-one thousand, five hundred five".