5643556 has 12 divisors (see below), whose sum is σ = 10305792. Its totient is φ = 2699048.

The previous prime is 5643553. The next prime is 5643563. The reversal of 5643556 is 6553465.

5643556 = T₆₈₉ + T₆₉₀ + ... + T₇₁₁.

It is not an unprimeable number, because it can be changed into a prime (5643553) 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, 30580 + ... + 30763.

It is an arithmetic number, because the mean of its divisors is an integer number (858816).

Almost surely, 2^5643556 is an apocalyptic number.

It is an amenable number.

5643556 is a deficient number, since it is larger than the sum of its proper divisors (4662236).

5643556 is a wasteful number, since it uses less digits than its factorization.

5643556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61370 (or 61368 counting only the distinct ones).

The product of its digits is 54000, while the sum is 34.

The square root of 5643556 is about 2375.6169724937. The cubic root of 5643556 is about 178.0400112050.

Subtracting 5643556 from its reverse (6553465), we obtain a palindrome (909909).

The spelling of 5643556 in words is "five million, six hundred forty-three thousand, five hundred fifty-six".