80216527 has 4 divisors (see below), whose sum is σ = 80314120. Its totient is φ = 80118936.

The previous prime is 80216491. The next prime is 80216551. The reversal of 80216527 is 72561208.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80216527 - 2⁷ = 80216399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80216597) 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 in 3 ways as a sum of consecutive naturals, for example, 47553 + ... + 49210.

It is an arithmetic number, because the mean of its divisors is an integer number (20078530).

Almost surely, 2^80216527 is an apocalyptic number.

80216527 is a deficient number, since it is larger than the sum of its proper divisors (97593).

80216527 is an equidigital number, since it uses as much as digits as its factorization.

80216527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97592.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 80216527 is about 8956.3679580509. The cubic root of 80216527 is about 431.2753322093.

The spelling of 80216527 in words is "eighty million, two hundred sixteen thousand, five hundred twenty-seven".