83257525217 has 2 divisors, whose sum is σ = 83257525218. Its totient is φ = 83257525216.

The previous prime is 83257525199. The next prime is 83257525297. The reversal of 83257525217 is 71252575238.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47339315776 + 35918209441 = 217576^2 + 189521^2 .

It is a cyclic number.

It is not a de Polignac number, because 83257525217 - 2¹⁴ = 83257508833 is a prime.

It is not a weakly prime, because it can be changed into another prime (83257525297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41628762608 + 41628762609.

It is an arithmetic number, because the mean of its divisors is an integer number (41628762609).

Almost surely, 2^83257525217 is an apocalyptic number.

It is an amenable number.

83257525217 is a deficient number, since it is larger than the sum of its proper divisors (1).

83257525217 is an equidigital number, since it uses as much as digits as its factorization.

83257525217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1176000, while the sum is 47.

The spelling of 83257525217 in words is "eighty-three billion, two hundred fifty-seven million, five hundred twenty-five thousand, two hundred seventeen".