42485185 has 4 divisors (see below), whose sum is σ = 50982228. Its totient is φ = 33988144.

The previous prime is 42485147. The next prime is 42485189. The reversal of 42485185 is 58158424.

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

It can be written as a sum of positive squares in 2 ways, for example, as 29582721 + 12902464 = 5439^2 + 3592^2 .

It is a cyclic number.

It is not a de Polignac number, because 42485185 - 2¹¹ = 42483137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42485189) 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, 4248514 + ... + 4248523.

It is an arithmetic number, because the mean of its divisors is an integer number (12745557).

Almost surely, 2^42485185 is an apocalyptic number.

It is an amenable number.

42485185 is a deficient number, since it is larger than the sum of its proper divisors (8497043).

42485185 is an equidigital number, since it uses as much as digits as its factorization.

42485185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8497042.

The product of its digits is 51200, while the sum is 37.

The square root of 42485185 is about 6518.0660475328. The cubic root of 42485185 is about 348.9360479202.

The spelling of 42485185 in words is "forty-two million, four hundred eighty-five thousand, one hundred eighty-five".