42575545 has 8 divisors (see below), whose sum is σ = 51150600. Its totient is φ = 34020480.

The previous prime is 42575543. The next prime is 42575551. The reversal of 42575545 is 54557524.

42575545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12138256 + 30437289 = 3484^2 + 5517^2 .

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

It is not a de Polignac number, because 42575545 - 2¹ = 42575543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42575543) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 181 + ... + 9229.

It is an arithmetic number, because the mean of its divisors is an integer number (6393825).

Almost surely, 2^42575545 is an apocalyptic number.

It is an amenable number.

42575545 is a deficient number, since it is larger than the sum of its proper divisors (8575055).

42575545 is an equidigital number, since it uses as much as digits as its factorization.

42575545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9995.

The product of its digits is 140000, while the sum is 37.

The square root of 42575545 is about 6524.9938697289. The cubic root of 42575545 is about 349.1832520100.

The spelling of 42575545 in words is "forty-two million, five hundred seventy-five thousand, five hundred forty-five".