80513273 has 2 divisors, whose sum is σ = 80513274. Its totient is φ = 80513272.

The previous prime is 80513263. The next prime is 80513281. The reversal of 80513273 is 37231508.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62220544 + 18292729 = 7888^2 + 4277^2 .

It is a cyclic number.

It is not a de Polignac number, because 80513273 - 2²² = 76318969 is a prime.

It is not a weakly prime, because it can be changed into another prime (80513263) 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, 40256636 + 40256637.

It is an arithmetic number, because the mean of its divisors is an integer number (40256637).

Almost surely, 2^80513273 is an apocalyptic number.

It is an amenable number.

80513273 is a deficient number, since it is larger than the sum of its proper divisors (1).

80513273 is an equidigital number, since it uses as much as digits as its factorization.

80513273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 80513273 is about 8972.9188673475. The cubic root of 80513273 is about 431.8064851871.

The spelling of 80513273 in words is "eighty million, five hundred thirteen thousand, two hundred seventy-three".