56655004309 has 2 divisors, whose sum is σ = 56655004310. Its totient is φ = 56655004308.

The previous prime is 56655004271. The next prime is 56655004313. The reversal of 56655004309 is 90340055665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53906623684 + 2748380625 = 232178^2 + 52425^2 .

It is a cyclic number.

It is not a de Polignac number, because 56655004309 - 2¹⁷ = 56654873237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56655008309) 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, 28327502154 + 28327502155.

It is an arithmetic number, because the mean of its divisors is an integer number (28327502155).

Almost surely, 2^56655004309 is an apocalyptic number.

It is an amenable number.

56655004309 is a deficient number, since it is larger than the sum of its proper divisors (1).

56655004309 is an equidigital number, since it uses as much as digits as its factorization.

56655004309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486000, while the sum is 43.

The spelling of 56655004309 in words is "fifty-six billion, six hundred fifty-five million, four thousand, three hundred nine".