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55441 is a prime number
BaseRepresentation
bin1101100010010001
32211001101
431202101
53233231
61104401
7320431
oct154221
984041
1055441
1138721
1228101
131c309
14162c1
1511661
hexd891

55441 has 2 divisors, whose sum is σ = 55442. Its totient is φ = 55440.

The previous prime is 55439. The next prime is 55457. The reversal of 55441 is 14455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46225 + 9216 = 215^2 + 96^2 .

It is a cyclic number.

It is not a de Polignac number, because 55441 - 21 = 55439 is a prime.

Together with 55439, it forms a pair of twin primes.

It is a Chen prime.

It is a nialpdrome in base 10.

It is not a weakly prime, because it can be changed into another prime (55411) 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 as a sum of consecutive naturals, namely, 27720 + 27721.

It is an arithmetic number, because the mean of its divisors is an integer number (27721).

255441 is an apocalyptic number.

It is an amenable number.

55441 is a deficient number, since it is larger than the sum of its proper divisors (1).

55441 is an equidigital number, since it uses as much as digits as its factorization.

55441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 400, while the sum is 19.

The square root of 55441 is about 235.4591259646. The cubic root of 55441 is about 38.1308966961.

Adding to 55441 its reverse (14455), we get a palindrome (69896).

It can be divided in two parts, 554 and 41, that added together give a palindrome (595).

The spelling of 55441 in words is "fifty-five thousand, four hundred forty-one".