5656481 has 2 divisors, whose sum is σ = 5656482. Its totient is φ = 5656480.

The previous prime is 5656463. The next prime is 5656489. The reversal of 5656481 is 1846565.

It is a happy number.

5656481 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3045025 + 2611456 = 1745^2 + 1616^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5656481 is a prime.

It is a super-2 number, since 2×5656481² = 63991554606722, which contains 22 as substring.

It is a Sophie Germain prime.

It is an Ulam number.

It is a Curzon number.

It is equal to p₃₉₀₇₉₇ and since 5656481 and 390797 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (5656489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2828240 + 2828241.

It is an arithmetic number, because the mean of its divisors is an integer number (2828241).

Almost surely, 2^5656481 is an apocalyptic number.

It is an amenable number.

5656481 is a deficient number, since it is larger than the sum of its proper divisors (1).

5656481 is an equidigital number, since it uses as much as digits as its factorization.

5656481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 35.

The square root of 5656481 is about 2378.3357626710. The cubic root of 5656481 is about 178.1758246678.

The spelling of 5656481 in words is "five million, six hundred fifty-six thousand, four hundred eighty-one".