80305255250309 has 2 divisors, whose sum is σ = 80305255250310. Its totient is φ = 80305255250308.

The previous prime is 80305255250291. The next prime is 80305255250347. The reversal of 80305255250309 is 90305255250308.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59391298230625 + 20913957019684 = 7706575^2 + 4573178^2 .

It is a cyclic number.

It is not a de Polignac number, because 80305255250309 - 2⁸ = 80305255250053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80305255252309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40152627625154 + 40152627625155.

It is an arithmetic number, because the mean of its divisors is an integer number (40152627625155).

Almost surely, 2^{80305255250309} is an apocalyptic number.

It is an amenable number.

80305255250309 is a deficient number, since it is larger than the sum of its proper divisors (1).

80305255250309 is an equidigital number, since it uses as much as digits as its factorization.

80305255250309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620000, while the sum is 47.

Subtracting 80305255250309 from its reverse (90305255250308), we obtain a palindrome (9999999999999).

The spelling of 80305255250309 in words is "eighty trillion, three hundred five billion, two hundred fifty-five million, two hundred fifty thousand, three hundred nine".