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55444 = 2283167
BaseRepresentation
bin1101100010010100
32211001111
431202110
53233234
61104404
7320434
oct154224
984044
1055444
1138724
1228104
131c30c
14162c4
1511664
hexd894

55444 has 12 divisors (see below), whose sum is σ = 98784. Its totient is φ = 27224.

The previous prime is 55441. The next prime is 55457. The reversal of 55444 is 44455.

It is a nialpdrome in base 10.

It is a zygodrome in base 3 and base 10.

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, 249 + ... + 415.

It is an arithmetic number, because the mean of its divisors is an integer number (8232).

255444 is an apocalyptic number.

It is an amenable number.

55444 is a deficient number, since it is larger than the sum of its proper divisors (43340).

55444 is a wasteful number, since it uses less digits than its factorization.

55444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 252 counting only the distinct ones).

The product of its digits is 1600, while the sum is 22.

The square root of 55444 is about 235.4654964108. The cubic root of 55444 is about 38.1315844580.

Adding to 55444 its reverse (44455), we get a palindrome (99899).

The spelling of 55444 in words is "fifty-five thousand, four hundred forty-four".

Divisors: 1 2 4 83 166 167 332 334 668 13861 27722 55444