42503015 has 8 divisors (see below), whose sum is σ = 52649088. Its totient is φ = 32905440.

The previous prime is 42502987. The next prime is 42503023. The reversal of 42503015 is 51030524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42503015 - 2¹⁸ = 42240871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136952 + ... + 137261.

It is an arithmetic number, because the mean of its divisors is an integer number (6581136).

Almost surely, 2^42503015 is an apocalyptic number.

42503015 is a deficient number, since it is larger than the sum of its proper divisors (10146073).

42503015 is a wasteful number, since it uses less digits than its factorization.

42503015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274249.

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

The square root of 42503015 is about 6519.4336410458. The cubic root of 42503015 is about 348.9848544206.

Adding to 42503015 its reverse (51030524), we get a palindrome (93533539).

The spelling of 42503015 in words is "forty-two million, five hundred three thousand, fifteen".