42001503 has 16 divisors (see below), whose sum is σ = 57853440. Its totient is φ = 27089216.

The previous prime is 42001501. The next prime is 42001511. The reversal of 42001503 is 30510024.

It is a cyclic number.

It is not a de Polignac number, because 42001503 - 2¹ = 42001501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42001501) 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, 10876 + ... + 14222.

It is an arithmetic number, because the mean of its divisors is an integer number (3615840).

Almost surely, 2^42001503 is an apocalyptic number.

42001503 is a deficient number, since it is larger than the sum of its proper divisors (15851937).

42001503 is a wasteful number, since it uses less digits than its factorization.

42001503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3486.

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

The square root of 42001503 is about 6480.8566563380. The cubic root of 42001503 is about 347.6068108424.

Adding to 42001503 its reverse (30510024), we get a palindrome (72511527).

The spelling of 42001503 in words is "forty-two million, one thousand, five hundred three".