42529 has 4 divisors (see below), whose sum is σ = 43200. Its totient is φ = 41860.

The previous prime is 42509. The next prime is 42533. The reversal of 42529 is 92524.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42529 - 2⁹ = 42017 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229 + ... + 370.

It is an arithmetic number, because the mean of its divisors is an integer number (10800).

2⁴²⁵²⁹ is an apocalyptic number.

It is an amenable number.

42529 is a deficient number, since it is larger than the sum of its proper divisors (671).

42529 is an equidigital number, since it uses as much as digits as its factorization.

42529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670.

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

The square root of 42529 is about 206.2256046179. The cubic root of 42529 is about 34.9055959369.

It can be divided in two parts, 425 and 29, that added together give a palindrome (454).

The spelling of 42529 in words is "forty-two thousand, five hundred twenty-nine".