42501503 has 4 divisors (see below), whose sum is σ = 46365288. Its totient is φ = 38637720.

The previous prime is 42501497. The next prime is 42501521. The reversal of 42501503 is 30510524.

42501503 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 is not a de Polignac number, because 42501503 - 2¹⁸ = 42239359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42501593) 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, 1931876 + ... + 1931897.

It is an arithmetic number, because the mean of its divisors is an integer number (11591322).

Almost surely, 2^42501503 is an apocalyptic number.

42501503 is a deficient number, since it is larger than the sum of its proper divisors (3863785).

42501503 is a wasteful number, since it uses less digits than its factorization.

42501503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3863784.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 42501503 is about 6519.3176790213. The cubic root of 42501503 is about 348.9807161153.

The spelling of 42501503 in words is "forty-two million, five hundred one thousand, five hundred three".