80054981 has 2 divisors, whose sum is σ = 80054982. Its totient is φ = 80054980.

The previous prime is 80054971. The next prime is 80055007. The reversal of 80054981 is 18945008.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54390625 + 25664356 = 7375^2 + 5066^2 .

It is a cyclic number.

It is not a de Polignac number, because 80054981 - 2²² = 75860677 is a prime.

It is a super-2 number, since 2×80054981² = 12817599965820722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80054951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40027490 + 40027491.

It is an arithmetic number, because the mean of its divisors is an integer number (40027491).

Almost surely, 2^80054981 is an apocalyptic number.

It is an amenable number.

80054981 is a deficient number, since it is larger than the sum of its proper divisors (1).

80054981 is an equidigital number, since it uses as much as digits as its factorization.

80054981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 80054981 is about 8947.3449134366. The cubic root of 80054981 is about 430.9856262130.

Adding to 80054981 its reverse (18945008), we get a palindrome (98999989).

The spelling of 80054981 in words is "eighty million, fifty-four thousand, nine hundred eighty-one".