82519573 has 2 divisors, whose sum is σ = 82519574. Its totient is φ = 82519572.

The previous prime is 82519559. The next prime is 82519597. The reversal of 82519573 is 37591528.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77845329 + 4674244 = 8823^2 + 2162^2 .

It is a cyclic number.

It is not a de Polignac number, because 82519573 - 2⁹ = 82519061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82519523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41259786 + 41259787.

It is an arithmetic number, because the mean of its divisors is an integer number (41259787).

Almost surely, 2^82519573 is an apocalyptic number.

It is an amenable number.

82519573 is a deficient number, since it is larger than the sum of its proper divisors (1).

82519573 is an equidigital number, since it uses as much as digits as its factorization.

82519573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 40.

The square root of 82519573 is about 9084.0284565825. The cubic root of 82519573 is about 435.3638089154.

The spelling of 82519573 in words is "eighty-two million, five hundred nineteen thousand, five hundred seventy-three".