80555311 has 2 divisors, whose sum is σ = 80555312. Its totient is φ = 80555310.

The previous prime is 80555309. The next prime is 80555339. The reversal of 80555311 is 11355508.

It is an a-pointer prime, because the next prime (80555339) can be obtained adding 80555311 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80555311 - 2¹ = 80555309 is a prime.

Together with 80555309, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 80555311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80555411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40277655 + 40277656.

It is an arithmetic number, because the mean of its divisors is an integer number (40277656).

Almost surely, 2^80555311 is an apocalyptic number.

80555311 is a deficient number, since it is larger than the sum of its proper divisors (1).

80555311 is an equidigital number, since it uses as much as digits as its factorization.

80555311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 80555311 is about 8975.2610546992. The cubic root of 80555311 is about 431.8816244447.

It can be divided in two parts, 8055 and 5311, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 80555311 in words is "eighty million, five hundred fifty-five thousand, three hundred eleven".