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51859 is a prime number
BaseRepresentation
bin1100101010010011
32122010201
430222103
53124414
61040031
7304123
oct145223
978121
1051859
1135a65
1226017
131a7b2
1414c83
1510574
hexca93

51859 has 2 divisors, whose sum is σ = 51860. Its totient is φ = 51858.

The previous prime is 51853. The next prime is 51869. The reversal of 51859 is 95815.

51859 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51859 - 25 = 51827 is a prime.

51859 is a lucky number.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (51853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25929 + 25930.

It is an arithmetic number, because the mean of its divisors is an integer number (25930).

251859 is an apocalyptic number.

51859 is a deficient number, since it is larger than the sum of its proper divisors (1).

51859 is an equidigital number, since it uses as much as digits as its factorization.

51859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 28.

The square root of 51859 is about 227.7257122066. The cubic root of 51859 is about 37.2913448713.

Subtracting 51859 from its reverse (95815), we obtain a triangular number (43956 = T296).

It can be divided in two parts, 5185 and 9, that multiplied together give a triangular number (46665 = T305).

The spelling of 51859 in words is "fifty-one thousand, eight hundred fifty-nine".