82525613 has 2 divisors, whose sum is σ = 82525614. Its totient is φ = 82525612.

The previous prime is 82525609. The next prime is 82525631. The reversal of 82525613 is 31652528.

Together with next prime (82525631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82119844 + 405769 = 9062^2 + 637^2 .

It is a cyclic number.

It is not a de Polignac number, because 82525613 - 2² = 82525609 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82525613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82525693) 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, 41262806 + 41262807.

It is an arithmetic number, because the mean of its divisors is an integer number (41262807).

Almost surely, 2^82525613 is an apocalyptic number.

It is an amenable number.

82525613 is a deficient number, since it is larger than the sum of its proper divisors (1).

82525613 is an equidigital number, since it uses as much as digits as its factorization.

82525613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 32.

The square root of 82525613 is about 9084.3609021218. The cubic root of 82525613 is about 435.3744307722.

It can be divided in two parts, 82525 and 613, that added together give a palindrome (83138).

The spelling of 82525613 in words is "eighty-two million, five hundred twenty-five thousand, six hundred thirteen".