5021603 has 4 divisors (see below), whose sum is σ = 5157360. Its totient is φ = 4885848.

The previous prime is 5021587. The next prime is 5021609. The reversal of 5021603 is 3061205.

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 5021603 - 2⁴ = 5021587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5021609) 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 3 ways as a sum of consecutive naturals, for example, 67823 + ... + 67896.

It is an arithmetic number, because the mean of its divisors is an integer number (1289340).

Almost surely, 2^5021603 is an apocalyptic number.

5021603 is a deficient number, since it is larger than the sum of its proper divisors (135757).

5021603 is a wasteful number, since it uses less digits than its factorization.

5021603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135756.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 5021603 is about 2240.8933486447. The cubic root of 5021603 is about 171.2435115733.

Adding to 5021603 its reverse (3061205), we get a palindrome (8082808).

The spelling of 5021603 in words is "five million, twenty-one thousand, six hundred three".