80510851 has 2 divisors, whose sum is σ = 80510852. Its totient is φ = 80510850.

The previous prime is 80510849. The next prime is 80510863. The reversal of 80510851 is 15801508.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80510851 - 2¹ = 80510849 is a prime.

Together with 80510849, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (80510821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40255425 + 40255426.

It is an arithmetic number, because the mean of its divisors is an integer number (40255426).

Almost surely, 2^80510851 is an apocalyptic number.

80510851 is a deficient number, since it is larger than the sum of its proper divisors (1).

80510851 is an equidigital number, since it uses as much as digits as its factorization.

80510851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1600, while the sum is 28.

The square root of 80510851 is about 8972.7839046753. The cubic root of 80510851 is about 431.8021552766.

The spelling of 80510851 in words is "eighty million, five hundred ten thousand, eight hundred fifty-one".