42545503 has 32 divisors (see below), whose sum is σ = 60157440. Its totient is φ = 28978560.

The previous prime is 42545497. The next prime is 42545507. The reversal of 42545503 is 30554524.

42545503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42545503 - 2⁹ = 42544991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42545507) 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 31 ways as a sum of consecutive naturals, for example, 17901 + ... + 20137.

It is an arithmetic number, because the mean of its divisors is an integer number (1879920).

Almost surely, 2^42545503 is an apocalyptic number.

42545503 is a deficient number, since it is larger than the sum of its proper divisors (17611937).

42545503 is a wasteful number, since it uses less digits than its factorization.

42545503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2287.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 42545503 is about 6522.6913923625. The cubic root of 42545503 is about 349.1011028830.

It can be divided in two parts, 42 and 545503, that added together give a palindrome (545545).

The spelling of 42545503 in words is "forty-two million, five hundred forty-five thousand, five hundred three".