42259 has 4 divisors (see below), whose sum is σ = 48304. Its totient is φ = 36216.

The previous prime is 42257. The next prime is 42281. The reversal of 42259 is 95224.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42259 - 2¹ = 42257 is a prime.

It is a Duffinian number.

42259 is a modest number, since divided by 259 gives 42 as remainder.

It is not an unprimeable number, because it can be changed into a prime (42257) 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, 3012 + ... + 3025.

It is an arithmetic number, because the mean of its divisors is an integer number (12076).

2⁴²²⁵⁹ is an apocalyptic number.

42259 is a deficient number, since it is larger than the sum of its proper divisors (6045).

42259 is an equidigital number, since it uses as much as digits as its factorization.

42259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6044.

The product of its digits is 720, while the sum is 22.

The square root of 42259 is about 205.5699394367. The cubic root of 42259 is about 34.8315717359.

It can be divided in two parts, 4225 and 9, that multiplied together give a square (38025 = 195²).

The spelling of 42259 in words is "forty-two thousand, two hundred fifty-nine".