20500082 has 24 divisors (see below), whose sum is σ = 32466420. Its totient is φ = 9701120.

The previous prime is 20500063. The next prime is 20500091. The reversal of 20500082 is 28000502.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 5900041 + 14600041 = 2429^2 + 3821^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20500082.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 230294 + ... + 230382.

Almost surely, 2^20500082 is an apocalyptic number.

20500082 is a deficient number, since it is larger than the sum of its proper divisors (11966338).

20500082 is an equidigital number, since it uses as much as digits as its factorization.

20500082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 20500082 is about 4527.7016244448. The cubic root of 20500082 is about 273.6855486530.

Adding to 20500082 its reverse (28000502), we get a palindrome (48500584).

It can be divided in two parts, 205000 and 82, that multiplied together give a square (16810000 = 4100²).

The spelling of 20500082 in words is "twenty million, five hundred thousand, eighty-two".