5656472749 has 2 divisors, whose sum is σ = 5656472750. Its totient is φ = 5656472748.

The previous prime is 5656472743. The next prime is 5656472761. The reversal of 5656472749 is 9472746565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5202015625 + 454457124 = 72125^2 + 21318^2 .

It is a cyclic number.

It is not a de Polignac number, because 5656472749 - 2³ = 5656472741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5656472749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5656472741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2828236374 + 2828236375.

It is an arithmetic number, because the mean of its divisors is an integer number (2828236375).

Almost surely, 2^5656472749 is an apocalyptic number.

It is an amenable number.

5656472749 is a deficient number, since it is larger than the sum of its proper divisors (1).

5656472749 is an equidigital number, since it uses as much as digits as its factorization.

5656472749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12700800, while the sum is 55.

The square root of 5656472749 is about 75209.5256533373. The cubic root of 5656472749 is about 1781.7573803385.

The spelling of 5656472749 in words is "five billion, six hundred fifty-six million, four hundred seventy-two thousand, seven hundred forty-nine".