3656552749 has 2 divisors, whose sum is σ = 3656552750. Its totient is φ = 3656552748.

The previous prime is 3656552743. The next prime is 3656552761. The reversal of 3656552749 is 9472556563.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3071154724 + 585398025 = 55418^2 + 24195^2 .

It is a cyclic number.

It is not a de Polignac number, because 3656552749 - 2⁷ = 3656552621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3656552696 and 3656552705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3656552743) 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, 1828276374 + 1828276375.

It is an arithmetic number, because the mean of its divisors is an integer number (1828276375).

Almost surely, 2^3656552749 is an apocalyptic number.

It is an amenable number.

3656552749 is a deficient number, since it is larger than the sum of its proper divisors (1).

3656552749 is an equidigital number, since it uses as much as digits as its factorization.

3656552749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804000, while the sum is 52.

The square root of 3656552749 is about 60469.4364865425. The cubic root of 3656552749 is about 1540.6025568359.

The spelling of 3656552749 in words is "three billion, six hundred fifty-six million, five hundred fifty-two thousand, seven hundred forty-nine".