55255078289 has 2 divisors, whose sum is σ = 55255078290. Its totient is φ = 55255078288.

The previous prime is 55255078279. The next prime is 55255078327. The reversal of 55255078289 is 98287055255.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32365809025 + 22889269264 = 179905^2 + 151292^2 .

It is a cyclic number.

It is not a de Polignac number, because 55255078289 - 2¹⁶ = 55255012753 is a prime.

It is not a weakly prime, because it can be changed into another prime (55255078279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27627539144 + 27627539145.

It is an arithmetic number, because the mean of its divisors is an integer number (27627539145).

Almost surely, 2^55255078289 is an apocalyptic number.

It is an amenable number.

55255078289 is a deficient number, since it is larger than the sum of its proper divisors (1).

55255078289 is an equidigital number, since it uses as much as digits as its factorization.

55255078289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080000, while the sum is 56.

The spelling of 55255078289 in words is "fifty-five billion, two hundred fifty-five million, seventy-eight thousand, two hundred eighty-nine".