80055791 has 4 divisors (see below), whose sum is σ = 80267400. Its totient is φ = 79844184.

The previous prime is 80055779. The next prime is 80055793. The reversal of 80055791 is 19755008.

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 80055791 - 2⁶ = 80055727 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 (80055793) 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, 105236 + ... + 105993.

It is an arithmetic number, because the mean of its divisors is an integer number (20066850).

Almost surely, 2^80055791 is an apocalyptic number.

80055791 is a deficient number, since it is larger than the sum of its proper divisors (211609).

80055791 is a wasteful number, since it uses less digits than its factorization.

80055791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211608.

The product of its (nonzero) digits is 12600, while the sum is 35.

The square root of 80055791 is about 8947.3901781469. The cubic root of 80055791 is about 430.9870797856.

The spelling of 80055791 in words is "eighty million, fifty-five thousand, seven hundred ninety-one".