80523071 has 2 divisors, whose sum is σ = 80523072. Its totient is φ = 80523070.

The previous prime is 80523049. The next prime is 80523073. The reversal of 80523071 is 17032508.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80523071 - 2²² = 76328767 is a prime.

It is a Sophie Germain prime.

Together with 80523073, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80523071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80523073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40261535 + 40261536.

It is an arithmetic number, because the mean of its divisors is an integer number (40261536).

Almost surely, 2^80523071 is an apocalyptic number.

80523071 is a deficient number, since it is larger than the sum of its proper divisors (1).

80523071 is an equidigital number, since it uses as much as digits as its factorization.

80523071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 80523071 is about 8973.4648269217. The cubic root of 80523071 is about 431.8240005945.

Adding to 80523071 its reverse (17032508), we get a palindrome (97555579).

The spelling of 80523071 in words is "eighty million, five hundred twenty-three thousand, seventy-one".