5561656 has 8 divisors (see below), whose sum is σ = 10428120. Its totient is φ = 2780824.

The previous prime is 5561641. The next prime is 5561657. The reversal of 5561656 is 6561655.

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5561657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347596 + ... + 347611.

It is an arithmetic number, because the mean of its divisors is an integer number (1303515).

Almost surely, 2^5561656 is an apocalyptic number.

It is an amenable number.

5561656 is a deficient number, since it is larger than the sum of its proper divisors (4866464).

5561656 is a wasteful number, since it uses less digits than its factorization.

5561656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695213 (or 695209 counting only the distinct ones).

The product of its digits is 27000, while the sum is 34.

The square root of 5561656 is about 2358.3163485843. The cubic root of 5561656 is about 177.1745647122.

Subtracting 5561656 from its reverse (6561655), we obtain a palindrome (999999).

The spelling of 5561656 in words is "five million, five hundred sixty-one thousand, six hundred fifty-six".