42059 has 4 divisors (see below), whose sum is σ = 42504. Its totient is φ = 41616.

The previous prime is 42043. The next prime is 42061. The reversal of 42059 is 95024.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42059 - 2⁴ = 42043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42059.

It is not an unprimeable number, because it can be changed into a prime (42019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17 + ... + 290.

It is an arithmetic number, because the mean of its divisors is an integer number (10626).

2⁴²⁰⁵⁹ is an apocalyptic number.

42059 is a deficient number, since it is larger than the sum of its proper divisors (445).

42059 is a wasteful number, since it uses less digits than its factorization.

42059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 42059 is about 205.0829100632. The cubic root of 42059 is about 34.7765354659.

The spelling of 42059 in words is "forty-two thousand, fifty-nine".