7610725561 has 2 divisors, whose sum is σ = 7610725562. Its totient is φ = 7610725560.

The previous prime is 7610725547. The next prime is 7610725613. The reversal of 7610725561 is 1655270167.

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., 4743765625 + 2866959936 = 68875^2 + 53544^2 .

It is an emirp because it is prime and its reverse (1655270167) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7610725561 - 2⁹ = 7610725049 is a prime.

It is not a weakly prime, because it can be changed into another prime (7610725261) 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, 3805362780 + 3805362781.

It is an arithmetic number, because the mean of its divisors is an integer number (3805362781).

Almost surely, 2^7610725561 is an apocalyptic number.

It is an amenable number.

7610725561 is a deficient number, since it is larger than the sum of its proper divisors (1).

7610725561 is an equidigital number, since it uses as much as digits as its factorization.

7610725561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88200, while the sum is 40.

The square root of 7610725561 is about 87239.4724938201. The cubic root of 7610725561 is about 1967.0195994228.

The spelling of 7610725561 in words is "seven billion, six hundred ten million, seven hundred twenty-five thousand, five hundred sixty-one".