9915560 has 16 divisors (see below), whose sum is σ = 22310100. Its totient is φ = 3966208.

The previous prime is 9915559. The next prime is 9915589. The reversal of 9915560 is 655199.

It can be written as a sum of positive squares in 2 ways, for example, as 9647236 + 268324 = 3106^2 + 518^2 .

It is a super-2 number, since 2×9915560² = 196636660227200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9915560.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 123905 + ... + 123984.

Almost surely, 2^9915560 is an apocalyptic number.

It is an amenable number.

9915560 is an abundant number, since it is smaller than the sum of its proper divisors (12394540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9915560 is a wasteful number, since it uses less digits than its factorization.

9915560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247900 (or 247896 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 35.

The square root of 9915560 is about 3148.8982200128. The cubic root of 9915560 is about 214.8353525820.

The spelling of 9915560 in words is "nine million, nine hundred fifteen thousand, five hundred sixty".