80056117 has 2 divisors, whose sum is σ = 80056118. Its totient is φ = 80056116.

The previous prime is 80056099. The next prime is 80056147. The reversal of 80056117 is 71165008.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70408881 + 9647236 = 8391^2 + 3106^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80056117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80056147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40028058 + 40028059.

It is an arithmetic number, because the mean of its divisors is an integer number (40028059).

Almost surely, 2^80056117 is an apocalyptic number.

It is an amenable number.

80056117 is a deficient number, since it is larger than the sum of its proper divisors (1).

80056117 is an equidigital number, since it uses as much as digits as its factorization.

80056117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 80056117 is about 8947.4083957311. The cubic root of 80056117 is about 430.9876648009.

The spelling of 80056117 in words is "eighty million, fifty-six thousand, one hundred seventeen".