42575 has 12 divisors (see below), whose sum is σ = 57288. Its totient is φ = 31200.

The previous prime is 42571. The next prime is 42577. The reversal of 42575 is 57524.

It is not a de Polignac number, because 42575 - 2² = 42571 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 42575.

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 11 ways as a sum of consecutive naturals, for example, 260 + ... + 390.

It is an arithmetic number, because the mean of its divisors is an integer number (4774).

2⁴²⁵⁷⁵ is an apocalyptic number.

42575 is a deficient number, since it is larger than the sum of its proper divisors (14713).

42575 is a wasteful number, since it uses less digits than its factorization.

42575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 149 counting only the distinct ones).

The product of its digits is 1400, while the sum is 23.

The square root of 42575 is about 206.3371028196. The cubic root of 42575 is about 34.9181762065.

The spelling of 42575 in words is "forty-two thousand, five hundred seventy-five".