55433111 has 4 divisors (see below), whose sum is σ = 55451352. Its totient is φ = 55414872.

The previous prime is 55433083. The next prime is 55433113. The reversal of 55433111 is 11133455.

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 55433111 - 2¹⁴ = 55416727 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55433113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3341 + ... + 11046.

It is an arithmetic number, because the mean of its divisors is an integer number (13862838).

Almost surely, 2^55433111 is an apocalyptic number.

55433111 is a deficient number, since it is larger than the sum of its proper divisors (18241).

55433111 is a wasteful number, since it uses less digits than its factorization.

55433111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18240.

The product of its digits is 900, while the sum is 23.

The square root of 55433111 is about 7445.3415636893. The cubic root of 55433111 is about 381.2908799307.

Adding to 55433111 its reverse (11133455), we get a palindrome (66566566).

The spelling of 55433111 in words is "fifty-five million, four hundred thirty-three thousand, one hundred eleven".