9955111 has 4 divisors (see below), whose sum is σ = 10007424. Its totient is φ = 9902800.

The previous prime is 9955093. The next prime is 9955157. The reversal of 9955111 is 1115599.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9955111 - 2⁷ = 9954983 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9955171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25870 + ... + 26251.

It is an arithmetic number, because the mean of its divisors is an integer number (2501856).

Almost surely, 2^9955111 is an apocalyptic number.

9955111 is a deficient number, since it is larger than the sum of its proper divisors (52313).

9955111 is a wasteful number, since it uses less digits than its factorization.

9955111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52312.

The product of its digits is 2025, while the sum is 31.

The square root of 9955111 is about 3155.1721030714. The cubic root of 9955111 is about 215.1206173747.

The spelling of 9955111 in words is "nine million, nine hundred fifty-five thousand, one hundred eleven".