55433 has 4 divisors (see below), whose sum is σ = 63360. Its totient is φ = 47508.

The previous prime is 55411. The next prime is 55439. The reversal of 55433 is 33455.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33455 = 5 ⋅6691.

It is a cyclic number.

It is not a de Polignac number, because 55433 - 2¹⁰ = 54409 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 55433.

It is not an unprimeable number, because it can be changed into a prime (55439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3953 + ... + 3966.

It is an arithmetic number, because the mean of its divisors is an integer number (15840).

2⁵⁵⁴³³ is an apocalyptic number.

It is an amenable number.

55433 is a deficient number, since it is larger than the sum of its proper divisors (7927).

55433 is an equidigital number, since it uses as much as digits as its factorization.

55433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7926.

The product of its digits is 900, while the sum is 20.

The square root of 55433 is about 235.4421372652. The cubic root of 55433 is about 38.1290625430.

Adding to 55433 its reverse (33455), we get a palindrome (88888).

The spelling of 55433 in words is "fifty-five thousand, four hundred thirty-three".