42063545 has 4 divisors (see below), whose sum is σ = 50476260. Its totient is φ = 33650832.

The previous prime is 42063529. The next prime is 42063547. The reversal of 42063545 is 54536024.

42063545 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 31494544 + 10569001 = 5612^2 + 3251^2 .

It is a cyclic number.

It is not a de Polignac number, because 42063545 - 2⁴ = 42063529 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42063547) 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 3 ways as a sum of consecutive naturals, for example, 4206350 + ... + 4206359.

It is an arithmetic number, because the mean of its divisors is an integer number (12619065).

Almost surely, 2^42063545 is an apocalyptic number.

It is an amenable number.

42063545 is a deficient number, since it is larger than the sum of its proper divisors (8412715).

42063545 is an equidigital number, since it uses as much as digits as its factorization.

42063545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8412714.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 42063545 is about 6485.6414486155. The cubic root of 42063545 is about 347.7778810039. Note that the first 3 decimals are identical.

Adding to 42063545 its reverse (54536024), we get a palindrome (96599569).

The spelling of 42063545 in words is "forty-two million, sixty-three thousand, five hundred forty-five".