80566313 has 2 divisors, whose sum is σ = 80566314. Its totient is φ = 80566312.

The previous prime is 80566259. The next prime is 80566397. The reversal of 80566313 is 31366508.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77915929 + 2650384 = 8827^2 + 1628^2 .

It is a cyclic number.

It is not a de Polignac number, because 80566313 - 2¹⁴ = 80549929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80566313.

It is not a weakly prime, because it can be changed into another prime (80566813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40283156 + 40283157.

It is an arithmetic number, because the mean of its divisors is an integer number (40283157).

Almost surely, 2^80566313 is an apocalyptic number.

It is an amenable number.

80566313 is a deficient number, since it is larger than the sum of its proper divisors (1).

80566313 is an equidigital number, since it uses as much as digits as its factorization.

80566313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 80566313 is about 8975.8739407369. The cubic root of 80566313 is about 431.9012852437.

The spelling of 80566313 in words is "eighty million, five hundred sixty-six thousand, three hundred thirteen".