55446 has 8 divisors (see below), whose sum is σ = 110904. Its totient is φ = 18480.

The previous prime is 55441. The next prime is 55457. The reversal of 55446 is 64455.

55446 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

55446 is an admirable number.

It is a plaindrome in base 15.

It is a zygodrome in base 15.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4615 + ... + 4626.

It is an arithmetic number, because the mean of its divisors is an integer number (13863).

2⁵⁵⁴⁴⁶ is an apocalyptic number.

55446 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55452).

55446 is a wasteful number, since it uses less digits than its factorization.

55446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9246.

The product of its digits is 2400, while the sum is 24.

The square root of 55446 is about 235.4697432793. The cubic root of 55446 is about 38.1320429522.

Subtracting 55446 from its reverse (64455), we obtain a palindrome (9009).

The spelling of 55446 in words is "fifty-five thousand, four hundred forty-six".