7075261561 has 2 divisors, whose sum is σ = 7075261562. Its totient is φ = 7075261560.

The previous prime is 7075261559. The next prime is 7075261597. The reversal of 7075261561 is 1651625707.

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., 4076056336 + 2999205225 = 63844^2 + 54765^2 .

It is an emirp because it is prime and its reverse (1651625707) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7075261561 - 2¹ = 7075261559 is a prime.

Together with 7075261559, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (7075261511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3537630780 + 3537630781.

It is an arithmetic number, because the mean of its divisors is an integer number (3537630781).

Almost surely, 2^7075261561 is an apocalyptic number.

It is an amenable number.

7075261561 is a deficient number, since it is larger than the sum of its proper divisors (1).

7075261561 is an equidigital number, since it uses as much as digits as its factorization.

7075261561 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 7075261561 is about 84114.5740106909. The cubic root of 7075261561 is about 1919.7624815595.

The spelling of 7075261561 in words is "seven billion, seventy-five million, two hundred sixty-one thousand, five hundred sixty-one".