9195562561 has 2 divisors, whose sum is σ = 9195562562. Its totient is φ = 9195562560.

The previous prime is 9195562511. The next prime is 9195562577. The reversal of 9195562561 is 1652655919.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8251905600 + 943656961 = 90840^2 + 30719^2 .

It is an emirp because it is prime and its reverse (1652655919) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9195562561 - 2¹¹ = 9195560513 is a prime.

It is not a weakly prime, because it can be changed into another prime (9195562511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4597781280 + 4597781281.

It is an arithmetic number, because the mean of its divisors is an integer number (4597781281).

Almost surely, 2^9195562561 is an apocalyptic number.

It is an amenable number.

9195562561 is a deficient number, since it is larger than the sum of its proper divisors (1).

9195562561 is an equidigital number, since it uses as much as digits as its factorization.

9195562561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 729000, while the sum is 49.

The square root of 9195562561 is about 95893.4959264704. The cubic root of 9195562561 is about 2095.0421638691.

The spelling of 9195562561 in words is "nine billion, one hundred ninety-five million, five hundred sixty-two thousand, five hundred sixty-one".