55448 has 16 divisors (see below), whose sum is σ = 108000. Its totient is φ = 26656.

The previous prime is 55441. The next prime is 55457. The reversal of 55448 is 84455.

55448 is nontrivially palindromic in base 3 and base 9.

It is an Ulam number.

It is a plaindrome in base 15.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55441) 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, 113 + ... + 351.

It is an arithmetic number, because the mean of its divisors is an integer number (6750).

2⁵⁵⁴⁴⁸ is an apocalyptic number.

55448 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

55448 is a deficient number, since it is larger than the sum of its proper divisors (52552).

55448 is a wasteful number, since it uses less digits than its factorization.

55448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 270 counting only the distinct ones).

The product of its digits is 3200, while the sum is 26.

The square root of 55448 is about 235.4739900711. The cubic root of 55448 is about 38.1325014353.

The spelling of 55448 in words is "fifty-five thousand, four hundred forty-eight".