2655656321 has 2 divisors, whose sum is σ = 2655656322. Its totient is φ = 2655656320.

The previous prime is 2655656303. The next prime is 2655656347. The reversal of 2655656321 is 1236565562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2156580721 + 499075600 = 46439^2 + 22340^2 .

It is a cyclic number.

It is not a de Polignac number, because 2655656321 - 2¹⁰ = 2655655297 is a prime.

It is not a weakly prime, because it can be changed into another prime (2655656621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1327828160 + 1327828161.

It is an arithmetic number, because the mean of its divisors is an integer number (1327828161).

Almost surely, 2^2655656321 is an apocalyptic number.

It is an amenable number.

2655656321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2655656321 is an equidigital number, since it uses as much as digits as its factorization.

2655656321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324000, while the sum is 41.

The square root of 2655656321 is about 51533.0604660736. The cubic root of 2655656321 is about 1384.8113791275.

The spelling of 2655656321 in words is "two billion, six hundred fifty-five million, six hundred fifty-six thousand, three hundred twenty-one".