42503065 has 24 divisors (see below), whose sum is σ = 56536704. Its totient is φ = 30650400.

The previous prime is 42503063. The next prime is 42503089. The reversal of 42503065 is 56030524.

It is not a de Polignac number, because 42503065 - 2¹ = 42503063 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42503063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98400 + ... + 98830.

It is an arithmetic number, because the mean of its divisors is an integer number (2355696).

Almost surely, 2^42503065 is an apocalyptic number.

It is an amenable number.

42503065 is a deficient number, since it is larger than the sum of its proper divisors (14033639).

42503065 is a wasteful number, since it uses less digits than its factorization.

42503065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621 (or 610 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 42503065 is about 6519.4374757336. The cubic root of 42503065 is about 348.9849912676.

Adding to 42503065 its reverse (56030524), we get a palindrome (98533589).

The spelling of 42503065 in words is "forty-two million, five hundred three thousand, sixty-five".