5656264409 has 2 divisors, whose sum is σ = 5656264410. Its totient is φ = 5656264408.

The previous prime is 5656264403. The next prime is 5656264417. The reversal of 5656264409 is 9044626565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4156638784 + 1499625625 = 64472^2 + 38725^2 .

It is a cyclic number.

It is not a de Polignac number, because 5656264409 - 2²⁴ = 5639487193 is a prime.

It is not a weakly prime, because it can be changed into another prime (5656264403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2828132204 + 2828132205.

It is an arithmetic number, because the mean of its divisors is an integer number (2828132205).

Almost surely, 2^5656264409 is an apocalyptic number.

It is an amenable number.

5656264409 is a deficient number, since it is larger than the sum of its proper divisors (1).

5656264409 is an equidigital number, since it uses as much as digits as its factorization.

5656264409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The square root of 5656264409 is about 75208.1405766690. The cubic root of 5656264409 is about 1781.7355047571.

The spelling of 5656264409 in words is "five billion, six hundred fifty-six million, two hundred sixty-four thousand, four hundred nine".