82505530529 has 2 divisors, whose sum is σ = 82505530530. Its totient is φ = 82505530528.

The previous prime is 82505530477. The next prime is 82505530553. The reversal of 82505530529 is 92503550528.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68472758929 + 14032771600 = 261673^2 + 118460^2 .

It is a cyclic number.

It is not a de Polignac number, because 82505530529 - 2²⁰ = 82504481953 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82505530529.

It is not a weakly prime, because it can be changed into another prime (82505530559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41252765264 + 41252765265.

It is an arithmetic number, because the mean of its divisors is an integer number (41252765265).

Almost surely, 2^82505530529 is an apocalyptic number.

It is an amenable number.

82505530529 is a deficient number, since it is larger than the sum of its proper divisors (1).

82505530529 is an equidigital number, since it uses as much as digits as its factorization.

82505530529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540000, while the sum is 44.

The spelling of 82505530529 in words is "eighty-two billion, five hundred five million, five hundred thirty thousand, five hundred twenty-nine".