5656641 has 8 divisors (see below), whose sum is σ = 7648704. Its totient is φ = 3717840.

The previous prime is 5656621. The next prime is 5656649. The reversal of 5656641 is 1466565.

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

It is not a de Polignac number, because 5656641 - 2⁶ = 5656577 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5656649) 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, 13066 + ... + 13491.

It is an arithmetic number, because the mean of its divisors is an integer number (956088).

Almost surely, 2^5656641 is an apocalyptic number.

It is an amenable number.

5656641 is a deficient number, since it is larger than the sum of its proper divisors (1992063).

5656641 is a wasteful number, since it uses less digits than its factorization.

5656641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26631.

The product of its digits is 21600, while the sum is 33.

The square root of 5656641 is about 2378.3693993995. The cubic root of 5656641 is about 178.1775046206.

The spelling of 5656641 in words is "five million, six hundred fifty-six thousand, six hundred forty-one".