5656771 has 4 divisors (see below), whose sum is σ = 5669352. Its totient is φ = 5644192.

The previous prime is 5656759. The next prime is 5656789. The reversal of 5656771 is 1776565.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5656771 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5656771.

It is not an unprimeable number, because it can be changed into a prime (5656171) 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, 5590 + ... + 6523.

It is an arithmetic number, because the mean of its divisors is an integer number (1417338).

Almost surely, 2^5656771 is an apocalyptic number.

5656771 is a deficient number, since it is larger than the sum of its proper divisors (12581).

5656771 is a wasteful number, since it uses less digits than its factorization.

5656771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12580.

The product of its digits is 44100, while the sum is 37.

The square root of 5656771 is about 2378.3967288911. The cubic root of 5656771 is about 178.1788695589.

The spelling of 5656771 in words is "five million, six hundred fifty-six thousand, seven hundred seventy-one".