80725417 has 2 divisors, whose sum is σ = 80725418. Its totient is φ = 80725416.

The previous prime is 80725409. The next prime is 80725427. The reversal of 80725417 is 71452708.

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., 75968656 + 4756761 = 8716^2 + 2181^2 .

It is a cyclic number.

It is not a de Polignac number, because 80725417 - 2³ = 80725409 is a prime.

It is not a weakly prime, because it can be changed into another prime (80725427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40362708 + 40362709.

It is an arithmetic number, because the mean of its divisors is an integer number (40362709).

Almost surely, 2^80725417 is an apocalyptic number.

It is an amenable number.

80725417 is a deficient number, since it is larger than the sum of its proper divisors (1).

80725417 is an equidigital number, since it uses as much as digits as its factorization.

80725417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 80725417 is about 8984.7324389767. The cubic root of 80725417 is about 432.1854074546.

The spelling of 80725417 in words is "eighty million, seven hundred twenty-five thousand, four hundred seventeen".