80505275 has 6 divisors (see below), whose sum is σ = 99826572. Its totient is φ = 64404200.

The previous prime is 80505253. The next prime is 80505277. The reversal of 80505275 is 57250508.

It is a happy number.

It is not a de Polignac number, because 80505275 - 2²⁴ = 63728059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80505277) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1610081 + ... + 1610130.

It is an arithmetic number, because the mean of its divisors is an integer number (16637762).

Almost surely, 2^80505275 is an apocalyptic number.

80505275 is a deficient number, since it is larger than the sum of its proper divisors (19321297).

80505275 is a wasteful number, since it uses less digits than its factorization.

80505275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3220221 (or 3220216 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 32.

The square root of 80505275 is about 8972.4731819048. The cubic root of 80505275 is about 431.7921864986.

The spelling of 80505275 in words is "eighty million, five hundred five thousand, two hundred seventy-five".