82520350057261 has 2 divisors, whose sum is σ = 82520350057262. Its totient is φ = 82520350057260.

The previous prime is 82520350057231. The next prime is 82520350057337. The reversal of 82520350057261 is 16275005302528.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82269779732361 + 250570324900 = 9070269^2 + 500570^2 .

It is a cyclic number.

It is not a de Polignac number, because 82520350057261 - 2¹⁵ = 82520350024493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82520350057231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41260175028630 + 41260175028631.

It is an arithmetic number, because the mean of its divisors is an integer number (41260175028631).

Almost surely, 2^{82520350057261} is an apocalyptic number.

It is an amenable number.

82520350057261 is a deficient number, since it is larger than the sum of its proper divisors (1).

82520350057261 is an equidigital number, since it uses as much as digits as its factorization.

82520350057261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008000, while the sum is 46.

Adding to 82520350057261 its reverse (16275005302528), we get a palindrome (98795355359789).

The spelling of 82520350057261 in words is "eighty-two trillion, five hundred twenty billion, three hundred fifty million, fifty-seven thousand, two hundred sixty-one".