80842251 has 16 divisors (see below), whose sum is σ = 123349248. Its totient is φ = 46135200.

The previous prime is 80842247. The next prime is 80842253. The reversal of 80842251 is 15224808.

It is not a de Polignac number, because 80842251 - 2² = 80842247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80842253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17716 + ... + 21806.

It is an arithmetic number, because the mean of its divisors is an integer number (7709328).

Almost surely, 2^80842251 is an apocalyptic number.

80842251 is a deficient number, since it is larger than the sum of its proper divisors (42506997).

80842251 is a wasteful number, since it uses less digits than its factorization.

80842251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5042.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 80842251 is about 8991.2318955747. The cubic root of 80842251 is about 432.3938077799.

The spelling of 80842251 in words is "eighty million, eight hundred forty-two thousand, two hundred fifty-one".