42503415 has 32 divisors (see below), whose sum is σ = 70848000. Its totient is φ = 21732480.

The previous prime is 42503413. The next prime is 42503441. The reversal of 42503415 is 51430524.

42503415 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 42503415 - 2¹ = 42503413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42503411) 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, 86320 + ... + 86810.

It is an arithmetic number, because the mean of its divisors is an integer number (2214000).

Almost surely, 2^42503415 is an apocalyptic number.

42503415 is a deficient number, since it is larger than the sum of its proper divisors (28344585).

42503415 is a wasteful number, since it uses less digits than its factorization.

42503415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 42503415 is about 6519.4643184851. The cubic root of 42503415 is about 348.9859491939.

Adding to 42503415 its reverse (51430524), we get a palindrome (93933939).

The spelling of 42503415 in words is "forty-two million, five hundred three thousand, four hundred fifteen".