9555855 has 16 divisors (see below), whose sum is σ = 15328224. Its totient is φ = 5083520.

The previous prime is 9555827. The next prime is 9555859. The reversal of 9555855 is 5585559.

It is not a de Polignac number, because 9555855 - 2⁵ = 9555823 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9555859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9685 + ... + 10625.

It is an arithmetic number, because the mean of its divisors is an integer number (958014).

Almost surely, 2^9555855 is an apocalyptic number.

9555855 is a deficient number, since it is larger than the sum of its proper divisors (5772369).

9555855 is a wasteful number, since it uses less digits than its factorization.

9555855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626.

The product of its digits is 225000, while the sum is 42.

The square root of 9555855 is about 3091.2545996731. The cubic root of 9555855 is about 212.2054419430.

The spelling of 9555855 in words is "nine million, five hundred fifty-five thousand, eight hundred fifty-five".