82715525 has 6 divisors (see below), whose sum is σ = 102567282. Its totient is φ = 66172400.

The previous prime is 82715513. The next prime is 82715527. The reversal of 82715525 is 52551728.

It can be written as a sum of positive squares in 3 ways, for example, as 22591009 + 60124516 = 4753^2 + 7754^2 .

It is not a de Polignac number, because 82715525 - 2⁴ = 82715509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82715527) 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 in 5 ways as a sum of consecutive naturals, for example, 1654286 + ... + 1654335.

It is an arithmetic number, because the mean of its divisors is an integer number (17094547).

Almost surely, 2^82715525 is an apocalyptic number.

It is an amenable number.

82715525 is a deficient number, since it is larger than the sum of its proper divisors (19851757).

82715525 is a wasteful number, since it uses less digits than its factorization.

82715525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3308631 (or 3308626 counting only the distinct ones).

The product of its digits is 28000, while the sum is 35.

The square root of 82715525 is about 9094.8075845506. The cubic root of 82715525 is about 435.7081432696.

The spelling of 82715525 in words is "eighty-two million, seven hundred fifteen thousand, five hundred twenty-five".