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BaseRepresentation
bin1011011111001
322001211
41123321
5142011
643121
723101
oct13371
98054
105881
114467
1234a1
1328a5
142201
151b21
hex16f9

5881 has 2 divisors, whose sum is σ = 5882. Its totient is φ = 5880.

The previous prime is 5879. The next prime is 5897. The reversal of 5881 is 1885.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5625 + 256 = 75^2 + 16^2 .

It is a cyclic number.

It is not a de Polignac number, because 5881 - 21 = 5879 is a prime.

It is a super-2 number, since 2×58812 = 69172322, which contains 22 as substring.

Together with 5879, it forms a pair of twin primes.

It is a plaindrome in base 11.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 5881.

It is not a weakly prime, because it can be changed into another prime (5801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2940 + 2941.

It is an arithmetic number, because the mean of its divisors is an integer number (2941).

25881 is an apocalyptic number.

5881 is the 49-th centered pentagonal number.

It is an amenable number.

5881 is a deficient number, since it is larger than the sum of its proper divisors (1).

5881 is an equidigital number, since it uses as much as digits as its factorization.

5881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 320, while the sum is 22.

The square root of 5881 is about 76.6876782802. The cubic root of 5881 is about 18.0502709934.

The spelling of 5881 in words is "five thousand, eight hundred eighty-one".