5656503 has 4 divisors (see below), whose sum is σ = 7542008. Its totient is φ = 3771000.

The previous prime is 5656493. The next prime is 5656549. The reversal of 5656503 is 3056565.

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

It is not a de Polignac number, because 5656503 - 2⁶ = 5656439 is a prime.

It is a D-number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5656003) 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, 942748 + ... + 942753.

It is an arithmetic number, because the mean of its divisors is an integer number (1885502).

Almost surely, 2^5656503 is an apocalyptic number.

5656503 is a deficient number, since it is larger than the sum of its proper divisors (1885505).

5656503 is a wasteful number, since it uses less digits than its factorization.

5656503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885504.

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 5656503 is about 2378.3403877494. The cubic root of 5656503 is about 178.1760556632.

The spelling of 5656503 in words is "five million, six hundred fifty-six thousand, five hundred three".