42755485 has 4 divisors (see below), whose sum is σ = 51306588. Its totient is φ = 34204384.

The previous prime is 42755473. The next prime is 42755509. The reversal of 42755485 is 58455724.

42755485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 4674244 + 38081241 = 2162^2 + 6171^2 .

It is a cyclic number.

It is not a de Polignac number, because 42755485 - 2²⁵ = 9201053 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4275544 + ... + 4275553.

It is an arithmetic number, because the mean of its divisors is an integer number (12826647).

Almost surely, 2^42755485 is an apocalyptic number.

It is an amenable number.

42755485 is a deficient number, since it is larger than the sum of its proper divisors (8551103).

42755485 is an equidigital number, since it uses as much as digits as its factorization.

42755485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8551102.

The product of its digits is 224000, while the sum is 40.

The square root of 42755485 is about 6538.7678502911. The cubic root of 42755485 is about 349.6744864693.

The spelling of 42755485 in words is "forty-two million, seven hundred fifty-five thousand, four hundred eighty-five".