80825413 has 2 divisors, whose sum is σ = 80825414. Its totient is φ = 80825412.

The previous prime is 80825389. The next prime is 80825417. The reversal of 80825413 is 31452808.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60186564 + 20638849 = 7758^2 + 4543^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80825413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80825417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40412706 + 40412707.

It is an arithmetic number, because the mean of its divisors is an integer number (40412707).

Almost surely, 2^80825413 is an apocalyptic number.

It is an amenable number.

80825413 is a deficient number, since it is larger than the sum of its proper divisors (1).

80825413 is an equidigital number, since it uses as much as digits as its factorization.

80825413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 80825413 is about 8990.2954901382. The cubic root of 80825413 is about 432.3637857209.

The spelling of 80825413 in words is "eighty million, eight hundred twenty-five thousand, four hundred thirteen".