82525910440 has 32 divisors (see below), whose sum is σ = 196605847080. Its totient is φ = 31068577792.

The previous prime is 82525910429. The next prime is 82525910443. The reversal of 82525910440 is 4401952528.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 82319643396 + 206267044 = 286914^2 + 14362^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 82525910393 and 82525910402.

It is not an unprimeable number, because it can be changed into a prime (82525910443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60680137 + ... + 60681496.

Almost surely, 2^82525910440 is an apocalyptic number.

It is an amenable number.

82525910440 is an abundant number, since it is smaller than the sum of its proper divisors (114079936640).

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

82525910440 is a wasteful number, since it uses less digits than its factorization.

82525910440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121361661 (or 121361657 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 82525910440 in words is "eighty-two billion, five hundred twenty-five million, nine hundred ten thousand, four hundred forty".