42510003 has 16 divisors (see below), whose sum is σ = 60746496. Its totient is φ = 26373600.

The previous prime is 42510001. The next prime is 42510007. The reversal of 42510003 is 30001524.

It is not a de Polignac number, because 42510003 - 2¹ = 42510001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42510001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5773 + ... + 10878.

It is an arithmetic number, because the mean of its divisors is an integer number (3796656).

Almost surely, 2^42510003 is an apocalyptic number.

42510003 is a deficient number, since it is larger than the sum of its proper divisors (18236493).

42510003 is a wasteful number, since it uses less digits than its factorization.

42510003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16714.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 42510003 is about 6519.9695551436. The cubic root of 42510003 is about 349.0039791228.

Adding to 42510003 its reverse (30001524), we get a palindrome (72511527).

The spelling of 42510003 in words is "forty-two million, five hundred ten thousand, three".