9915009255 has 32 divisors (see below), whose sum is σ = 17632451520. Its totient is φ = 5286274560.

The previous prime is 9915009239. The next prime is 9915009283. The reversal of 9915009255 is 5529005199.

9915009255 is a `hidden beast` number, since 9 + 9 + 1 + 500 + 92 + 55 = 666.

It is not a de Polignac number, because 9915009255 - 2⁴ = 9915009239 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 9915009255.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 474835 + ... + 495275.

It is an arithmetic number, because the mean of its divisors is an integer number (551014110).

Almost surely, 2^9915009255 is an apocalyptic number.

9915009255 is a deficient number, since it is larger than the sum of its proper divisors (7717442265).

9915009255 is a wasteful number, since it uses less digits than its factorization.

9915009255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24048 (or 24042 counting only the distinct ones).

The product of its (nonzero) digits is 182250, while the sum is 45.

The square root of 9915009255 is about 99574.1394891264. The cubic root of 9915009255 is about 2148.3137493852.

The spelling of 9915009255 in words is "nine billion, nine hundred fifteen million, nine thousand, two hundred fifty-five".