9056561279 has 2 divisors, whose sum is σ = 9056561280. Its totient is φ = 9056561278.

The previous prime is 9056561273. The next prime is 9056561281. The reversal of 9056561279 is 9721656509.

It is a happy number.

9056561279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9056561279 is a prime.

Together with 9056561281, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9056561273) 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, 4528280639 + 4528280640.

It is an arithmetic number, because the mean of its divisors is an integer number (4528280640).

Almost surely, 2^9056561279 is an apocalyptic number.

9056561279 is a deficient number, since it is larger than the sum of its proper divisors (1).

9056561279 is an equidigital number, since it uses as much as digits as its factorization.

9056561279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1020600, while the sum is 50.

The square root of 9056561279 is about 95165.9670207790. The cubic root of 9056561279 is about 2084.4322153941.

The spelling of 9056561279 in words is "nine billion, fifty-six million, five hundred sixty-one thousand, two hundred seventy-nine".