5656161 has 8 divisors (see below), whose sum is σ = 8618944. Its totient is φ = 3232080.

The previous prime is 5656141. The next prime is 5656171. The reversal of 5656161 is 1616565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5656161 - 2⁶ = 5656097 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5656111) 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 7 ways as a sum of consecutive naturals, for example, 134650 + ... + 134691.

It is an arithmetic number, because the mean of its divisors is an integer number (1077368).

Almost surely, 2^5656161 is an apocalyptic number.

It is an amenable number.

5656161 is a deficient number, since it is larger than the sum of its proper divisors (2962783).

5656161 is a wasteful number, since it uses less digits than its factorization.

5656161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269351.

The product of its digits is 5400, while the sum is 30.

The square root of 5656161 is about 2378.2684877869. The cubic root of 5656161 is about 178.1724646671.

The spelling of 5656161 in words is "five million, six hundred fifty-six thousand, one hundred sixty-one".