80455321 has 2 divisors, whose sum is σ = 80455322. Its totient is φ = 80455320.

The previous prime is 80455247. The next prime is 80455327. The reversal of 80455321 is 12355408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67059721 + 13395600 = 8189^2 + 3660^2 .

It is a cyclic number.

It is not a de Polignac number, because 80455321 - 2¹¹ = 80453273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80455321.

It is not a weakly prime, because it can be changed into another prime (80455327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40227660 + 40227661.

It is an arithmetic number, because the mean of its divisors is an integer number (40227661).

Almost surely, 2^80455321 is an apocalyptic number.

It is an amenable number.

80455321 is a deficient number, since it is larger than the sum of its proper divisors (1).

80455321 is an equidigital number, since it uses as much as digits as its factorization.

80455321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 80455321 is about 8969.6890135612. The cubic root of 80455321 is about 431.7028581500.

It can be divided in two parts, 8045 and 5321, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 80455321 in words is "eighty million, four hundred fifty-five thousand, three hundred twenty-one".