80069257 has 2 divisors, whose sum is σ = 80069258. Its totient is φ = 80069256.

The previous prime is 80069183. The next prime is 80069293. The reversal of 80069257 is 75296008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48944016 + 31125241 = 6996^2 + 5579^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80069257 is a prime.

It is a super-2 number, since 2×80069257² = 12822171833064098, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80069057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40034628 + 40034629.

It is an arithmetic number, because the mean of its divisors is an integer number (40034629).

Almost surely, 2^80069257 is an apocalyptic number.

It is an amenable number.

80069257 is a deficient number, since it is larger than the sum of its proper divisors (1).

80069257 is an equidigital number, since it uses as much as digits as its factorization.

80069257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 80069257 is about 8948.1426564399. The cubic root of 80069257 is about 431.0112435451.

The spelling of 80069257 in words is "eighty million, sixty-nine thousand, two hundred fifty-seven".