42573 has 8 divisors (see below), whose sum is σ = 59328. Its totient is φ = 27104.

The previous prime is 42571. The next prime is 42577. The reversal of 42573 is 37524.

It is a happy number.

42573 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42573 - 2¹ = 42571 is a prime.

It is a Curzon number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240 + ... + 377.

It is an arithmetic number, because the mean of its divisors is an integer number (7416).

2⁴²⁵⁷³ is an apocalyptic number.

It is an amenable number.

42573 is a deficient number, since it is larger than the sum of its proper divisors (16755).

42573 is a wasteful number, since it uses less digits than its factorization.

42573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643.

The product of its digits is 840, while the sum is 21.

The square root of 42573 is about 206.3322563246. The cubic root of 42573 is about 34.9176294267.

The spelling of 42573 in words is "forty-two thousand, five hundred seventy-three".