80855023 has 4 divisors (see below), whose sum is σ = 80873128. Its totient is φ = 80836920.

The previous prime is 80855011. The next prime is 80855039. The reversal of 80855023 is 32055808.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80855023 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 (80855063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2965 + ... + 13057.

It is an arithmetic number, because the mean of its divisors is an integer number (20218282).

Almost surely, 2^80855023 is an apocalyptic number.

80855023 is a deficient number, since it is larger than the sum of its proper divisors (18105).

80855023 is a wasteful number, since it uses less digits than its factorization.

80855023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18104.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 80855023 is about 8991.9421150272. The cubic root of 80855023 is about 432.4165774036.

The spelling of 80855023 in words is "eighty million, eight hundred fifty-five thousand, twenty-three".