6662503 has 4 divisors (see below), whose sum is σ = 6667920. Its totient is φ = 6657088.

The previous prime is 6662477. The next prime is 6662507. The reversal of 6662503 is 3052666.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6662503 - 2¹⁷ = 6531431 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 (6662507) 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, 126 + ... + 3652.

It is an arithmetic number, because the mean of its divisors is an integer number (1666980).

Almost surely, 2^6662503 is an apocalyptic number.

6662503 is a deficient number, since it is larger than the sum of its proper divisors (5417).

6662503 is a wasteful number, since it uses less digits than its factorization.

6662503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5416.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 6662503 is about 2581.1824809571. The cubic root of 6662503 is about 188.1680160130.

The spelling of 6662503 in words is "six million, six hundred sixty-two thousand, five hundred three".