42033503 has 4 divisors (see below), whose sum is σ = 44506080. Its totient is φ = 39560928.

The previous prime is 42033479. The next prime is 42033583. The reversal of 42033503 is 30533024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42033503 - 2¹⁰ = 42032479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42033583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1236263 + ... + 1236296.

It is an arithmetic number, because the mean of its divisors is an integer number (11126520).

Almost surely, 2^42033503 is an apocalyptic number.

42033503 is a deficient number, since it is larger than the sum of its proper divisors (2472577).

42033503 is a wasteful number, since it uses less digits than its factorization.

42033503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472576.

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 42033503 is about 6483.3249957101. The cubic root of 42033503 is about 347.6950663686.

Adding to 42033503 its reverse (30533024), we get a palindrome (72566527).

The spelling of 42033503 in words is "forty-two million, thirty-three thousand, five hundred three".