80212571 has 4 divisors (see below), whose sum is σ = 81228000. Its totient is φ = 79197144.

The previous prime is 80212567. The next prime is 80212609. The reversal of 80212571 is 17521208.

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 80212571 - 2² = 80212567 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80212571.

It is not an unprimeable number, because it can be changed into a prime (80202571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 507596 + ... + 507753.

It is an arithmetic number, because the mean of its divisors is an integer number (20307000).

Almost surely, 2^80212571 is an apocalyptic number.

80212571 is a deficient number, since it is larger than the sum of its proper divisors (1015429).

80212571 is a wasteful number, since it uses less digits than its factorization.

80212571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015428.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 80212571 is about 8956.1471068758. The cubic root of 80212571 is about 431.2682424265.

Adding to 80212571 its reverse (17521208), we get a palindrome (97733779).

The spelling of 80212571 in words is "eighty million, two hundred twelve thousand, five hundred seventy-one".