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5449 is a prime number
BaseRepresentation
bin1010101001001
321110211
41111021
5133244
641121
721613
oct12511
97424
105449
114104
1231a1
132632
141db3
151934
hex1549

5449 has 2 divisors, whose sum is σ = 5450. Its totient is φ = 5448.

The previous prime is 5443. The next prime is 5471. The reversal of 5449 is 9445.

It can be divided in two parts, 5 and 449, that added together give a palindrome (454).

It is an a-pointer prime, because the next prime (5471) can be obtained adding 5449 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3600 + 1849 = 60^2 + 43^2 .

It is a cyclic number.

It is not a de Polignac number, because 5449 - 23 = 5441 is a prime.

5449 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2724 + 2725.

It is an arithmetic number, because the mean of its divisors is an integer number (2725).

25449 is an apocalyptic number.

It is an amenable number.

5449 is a deficient number, since it is larger than the sum of its proper divisors (1).

5449 is an equidigital number, since it uses as much as digits as its factorization.

5449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 22.

The square root of 5449 is about 73.8173421358. The cubic root of 5449 is about 17.5970122339.

The spelling of 5449 in words is "five thousand, four hundred forty-nine".