82207500 has 120 divisors (see below), whose sum is σ = 244309296. Its totient is φ = 21504000.

The previous prime is 82207487. The next prime is 82207507. The reversal of 82207500 is 570228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82207507) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 727444 + ... + 727556.

Almost surely, 2^82207500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82207500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122154648).

82207500 is an abundant number, since it is smaller than the sum of its proper divisors (162101796).

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

82207500 is a wasteful number, since it uses less digits than its factorization.

82207500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 82207500 is about 9066.8351700028. The cubic root of 82207500 is about 434.8142951544.

Adding to 82207500 its reverse (570228), we get a palindrome (82777728).

The spelling of 82207500 in words is "eighty-two million, two hundred seven thousand, five hundred".