80805263 has 24 divisors (see below), whose sum is σ = 103199184. Its totient is φ = 62563200.

The previous prime is 80805259. The next prime is 80805289. The reversal of 80805263 is 36250808.

It is not a de Polignac number, because 80805263 - 2² = 80805259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80805253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105803 + ... + 106563.

It is an arithmetic number, because the mean of its divisors is an integer number (4299966).

Almost surely, 2^80805263 is an apocalyptic number.

80805263 is a deficient number, since it is larger than the sum of its proper divisors (22393921).

80805263 is a wasteful number, since it uses less digits than its factorization.

80805263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983 (or 976 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 80805263 is about 8989.1747674634. The cubic root of 80805263 is about 432.3278529037.

The spelling of 80805263 in words is "eighty million, eight hundred five thousand, two hundred sixty-three".