9915552 has 36 divisors (see below), whose sum is σ = 28198170. Its totient is φ = 3305088.

The previous prime is 9915547. The next prime is 9915559. The reversal of 9915552 is 2555199.

9915552 is a `hidden beast` number, since 99 + 15 + 552 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9511056 + 404496 = 3084^2 + 636^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (9915559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16927 + ... + 17502.

Almost surely, 2^9915552 is an apocalyptic number.

It is an amenable number.

9915552 is an abundant number, since it is smaller than the sum of its proper divisors (18282618).

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

9915552 is a wasteful number, since it uses less digits than its factorization.

9915552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34445 (or 34434 counting only the distinct ones).

The product of its digits is 20250, while the sum is 36.

The square root of 9915552 is about 3148.8969497270. The cubic root of 9915552 is about 214.8352948047.

It can be divided in two parts, 99 and 15552, that added together give a palindrome (15651).

The spelling of 9915552 in words is "nine million, nine hundred fifteen thousand, five hundred fifty-two".