42031503 has 12 divisors (see below), whose sum is σ = 61568208. Its totient is φ = 27625920.

The previous prime is 42031471. The next prime is 42031523. The reversal of 42031503 is 30513024.

It is not a de Polignac number, because 42031503 - 2⁵ = 42031471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42031523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32250 + ... + 33527.

It is an arithmetic number, because the mean of its divisors is an integer number (5130684).

Almost surely, 2^42031503 is an apocalyptic number.

42031503 is a deficient number, since it is larger than the sum of its proper divisors (19536705).

42031503 is a wasteful number, since it uses less digits than its factorization.

42031503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65854 (or 65851 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 42031503 is about 6483.1707520318. The cubic root of 42031503 is about 347.6895517108.

Adding to 42031503 its reverse (30513024), we get a palindrome (72544527).

The spelling of 42031503 in words is "forty-two million, thirty-one thousand, five hundred three".