42485 has 8 divisors (see below), whose sum is σ = 52920. Its totient is φ = 32704.

The previous prime is 42473. The next prime is 42487. The reversal of 42485 is 58424.

42485 = 118² + 119² + 120².

It can be written as a sum of positive squares in 4 ways, for example, as 13924 + 28561 = 118^2 + 169^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42485 is a prime.

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 42485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42487) 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, 2 + ... + 291.

It is an arithmetic number, because the mean of its divisors is an integer number (6615).

2⁴²⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

42485 is a deficient number, since it is larger than the sum of its proper divisors (10435).

42485 is a wasteful number, since it uses less digits than its factorization.

42485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327.

The product of its digits is 1280, while the sum is 23.

The square root of 42485 is about 206.1188977265. The cubic root of 42485 is about 34.8935541444.

The spelling of 42485 in words is "forty-two thousand, four hundred eighty-five".