82562521 has 2 divisors, whose sum is σ = 82562522. Its totient is φ = 82562520.

The previous prime is 82562483. The next prime is 82562549. The reversal of 82562521 is 12526528.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49154121 + 33408400 = 7011^2 + 5780^2 .

It is a cyclic number.

It is not a de Polignac number, because 82562521 - 2¹⁹ = 82038233 is a prime.

It is not a weakly prime, because it can be changed into another prime (82562321) 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, 41281260 + 41281261.

It is an arithmetic number, because the mean of its divisors is an integer number (41281261).

Almost surely, 2^82562521 is an apocalyptic number.

It is an amenable number.

82562521 is a deficient number, since it is larger than the sum of its proper divisors (1).

82562521 is an equidigital number, since it uses as much as digits as its factorization.

82562521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9600, while the sum is 31.

The square root of 82562521 is about 9086.3920782674. The cubic root of 82562521 is about 435.4393253910.

The spelling of 82562521 in words is "eighty-two million, five hundred sixty-two thousand, five hundred twenty-one".