80662513 has 2 divisors, whose sum is σ = 80662514. Its totient is φ = 80662512.

The previous prime is 80662489. The next prime is 80662537. The reversal of 80662513 is 31526608.

It is a balanced prime because it is at equal distance from previous prime (80662489) and next prime (80662537).

It can be written as a sum of positive squares in only one way, i.e., 79423744 + 1238769 = 8912^2 + 1113^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80662513 is a prime.

It is not a weakly prime, because it can be changed into another prime (80662583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40331256 + 40331257.

It is an arithmetic number, because the mean of its divisors is an integer number (40331257).

Almost surely, 2^80662513 is an apocalyptic number.

It is an amenable number.

80662513 is a deficient number, since it is larger than the sum of its proper divisors (1).

80662513 is an equidigital number, since it uses as much as digits as its factorization.

80662513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 80662513 is about 8981.2311516852. The cubic root of 80662513 is about 432.0731204104.

The spelling of 80662513 in words is "eighty million, six hundred sixty-two thousand, five hundred thirteen".