82025658 has 72 divisors (see below), whose sum is σ = 210446964. Its totient is φ = 22936320.

The previous prime is 82025653. The next prime is 82025687. The reversal of 82025658 is 85652028.

It can be written as a sum of positive squares in 2 ways, for example, as 68608089 + 13417569 = 8283^2 + 3663^2 .

It is not an unprimeable number, because it can be changed into a prime (82025651) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 26866 + ... + 29762.

Almost surely, 2^82025658 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82025658, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105223482).

82025658 is an abundant number, since it is smaller than the sum of its proper divisors (128421306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82025658 is a wasteful number, since it uses less digits than its factorization.

82025658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2940 (or 2926 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 82025658 is about 9056.8017533785. The cubic root of 82025658 is about 434.4934571466.

The spelling of 82025658 in words is "eighty-two million, twenty-five thousand, six hundred fifty-eight".