5571644 has 24 divisors (see below), whose sum is σ = 10607520. Its totient is φ = 2545344.

The previous prime is 5571637. The next prime is 5571649. The reversal of 5571644 is 4461755.

It is a self number, because there is not a number n which added to its sum of digits gives 5571644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5571649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5177 + ... + 6159.

It is an arithmetic number, because the mean of its divisors is an integer number (441980).

Almost surely, 2^5571644 is an apocalyptic number.

It is an amenable number.

5571644 is a deficient number, since it is larger than the sum of its proper divisors (5035876).

5571644 is a wasteful number, since it uses less digits than its factorization.

5571644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109 (or 1107 counting only the distinct ones).

The product of its digits is 16800, while the sum is 32.

The square root of 5571644 is about 2360.4330111232. The cubic root of 5571644 is about 177.2805619951.

The spelling of 5571644 in words is "five million, five hundred seventy-one thousand, six hundred forty-four".