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56039 is a prime number
BaseRepresentation
bin1101101011100111
32211212112
431223213
53243124
61111235
7322244
oct155347
984775
1056039
1139115
122851b
131c679
14165cb
151190e
hexdae7

56039 has 2 divisors, whose sum is σ = 56040. Its totient is φ = 56038.

The previous prime is 56009. The next prime is 56041. The reversal of 56039 is 93065.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-56039 is a prime.

Together with 56041, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 6.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28019 + 28020.

It is an arithmetic number, because the mean of its divisors is an integer number (28020).

256039 is an apocalyptic number.

56039 is a deficient number, since it is larger than the sum of its proper divisors (1).

56039 is an equidigital number, since it uses as much as digits as its factorization.

56039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 56039 is about 236.7255795219. The cubic root of 56039 is about 38.2675030607.

The spelling of 56039 in words is "fifty-six thousand, thirty-nine".