82525657 has 4 divisors (see below), whose sum is σ = 82573876. Its totient is φ = 82477440.

The previous prime is 82525631. The next prime is 82525669. The reversal of 82525657 is 75652528.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25613721 + 56911936 = 5061^2 + 7544^2 .

It is a cyclic number.

It is not a de Polignac number, because 82525657 - 2⁷ = 82525529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82525057) 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 in 3 ways as a sum of consecutive naturals, for example, 21444 + ... + 24997.

It is an arithmetic number, because the mean of its divisors is an integer number (20643469).

Almost surely, 2^82525657 is an apocalyptic number.

It is an amenable number.

82525657 is a deficient number, since it is larger than the sum of its proper divisors (48219).

82525657 is a wasteful number, since it uses less digits than its factorization.

82525657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48218.

The product of its digits is 168000, while the sum is 40.

The square root of 82525657 is about 9084.3633238659. The cubic root of 82525657 is about 435.3745081480.

The spelling of 82525657 in words is "eighty-two million, five hundred twenty-five thousand, six hundred fifty-seven".