80544901 has 2 divisors, whose sum is σ = 80544902. Its totient is φ = 80544900.

The previous prime is 80544889. The next prime is 80544917. The reversal of 80544901 is 10944508.

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., 74909025 + 5635876 = 8655^2 + 2374^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80544901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80544941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40272450 + 40272451.

It is an arithmetic number, because the mean of its divisors is an integer number (40272451).

Almost surely, 2^80544901 is an apocalyptic number.

It is an amenable number.

80544901 is a deficient number, since it is larger than the sum of its proper divisors (1).

80544901 is an equidigital number, since it uses as much as digits as its factorization.

80544901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 80544901 is about 8974.6811085408. The cubic root of 80544901 is about 431.8630199135.

The spelling of 80544901 in words is "eighty million, five hundred forty-four thousand, nine hundred one".