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40559 is a prime number
BaseRepresentation
bin1001111001101111
32001122012
421321233
52244214
6511435
7226151
oct117157
961565
1040559
1128522
121b57b
13155cc
1410ad1
15c03e
hex9e6f

40559 has 2 divisors, whose sum is σ = 40560. Its totient is φ = 40558.

The previous prime is 40543. The next prime is 40577. The reversal of 40559 is 95504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40559 - 24 = 40543 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40519) 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, 20279 + 20280.

It is an arithmetic number, because the mean of its divisors is an integer number (20280).

240559 is an apocalyptic number.

40559 is a deficient number, since it is larger than the sum of its proper divisors (1).

40559 is an equidigital number, since it uses as much as digits as its factorization.

40559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 40559 is about 201.3926513059. The cubic root of 40559 is about 34.3580952693.

Subtracting 40559 from its reverse (95504), we obtain a palindrome (54945).

It can be divided in two parts, 405 and 59, that added together give a palindrome (464).

The spelling of 40559 in words is "forty thousand, five hundred fifty-nine".