5656449 has 16 divisors (see below), whose sum is σ = 7824960. Its totient is φ = 3631680.

The previous prime is 5656439. The next prime is 5656463. The reversal of 5656449 is 9446565.

It is not a de Polignac number, because 5656449 - 2⁸ = 5656193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5656439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14347 + ... + 14735.

It is an arithmetic number, because the mean of its divisors is an integer number (489060).

Almost surely, 2^5656449 is an apocalyptic number.

It is an amenable number.

5656449 is a deficient number, since it is larger than the sum of its proper divisors (2168511).

5656449 is a wasteful number, since it uses less digits than its factorization.

5656449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560.

The product of its digits is 129600, while the sum is 39.

The square root of 5656449 is about 2378.3290352682. The cubic root of 5656449 is about 178.1754886734.

It can be divided in two parts, 5656 and 449, that added together give a triangular number (6105 = T₁₁₀).

The spelling of 5656449 in words is "five million, six hundred fifty-six thousand, four hundred forty-nine".