80826533 has 2 divisors, whose sum is σ = 80826534. Its totient is φ = 80826532.

The previous prime is 80826503. The next prime is 80826547. The reversal of 80826533 is 33562808.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78464164 + 2362369 = 8858^2 + 1537^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80826533 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 80826493 and 80826502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80826503) 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, 40413266 + 40413267.

It is an arithmetic number, because the mean of its divisors is an integer number (40413267).

Almost surely, 2^80826533 is an apocalyptic number.

It is an amenable number.

80826533 is a deficient number, since it is larger than the sum of its proper divisors (1).

80826533 is an equidigital number, since it uses as much as digits as its factorization.

80826533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 80826533 is about 8990.3577793100. The cubic root of 80826533 is about 432.3657828041.

The spelling of 80826533 in words is "eighty million, eight hundred twenty-six thousand, five hundred thirty-three".