6625089749 has 2 divisors, whose sum is σ = 6625089750. Its totient is φ = 6625089748.

The previous prime is 6625089743. The next prime is 6625089811. The reversal of 6625089749 is 9479805266.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6155500849 + 469588900 = 78457^2 + 21670^2 .

It is a cyclic number.

It is not a de Polignac number, because 6625089749 - 2²⁰ = 6624041173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6625089694 and 6625089703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6625089743) 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, 3312544874 + 3312544875.

It is an arithmetic number, because the mean of its divisors is an integer number (3312544875).

Almost surely, 2^6625089749 is an apocalyptic number.

It is an amenable number.

6625089749 is a deficient number, since it is larger than the sum of its proper divisors (1).

6625089749 is an equidigital number, since it uses as much as digits as its factorization.

6625089749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6531840, while the sum is 56.

The square root of 6625089749 is about 81394.6543023558. The cubic root of 6625089749 is about 1878.1513581512.

The spelling of 6625089749 in words is "six billion, six hundred twenty-five million, eighty-nine thousand, seven hundred forty-nine".