20552101130125 has 8 divisors (see below), whose sum is σ = 25649022210552. Its totient is φ = 16441680904000.

The previous prime is 20552101130081. The next prime is 20552101130129. The reversal of 20552101130125 is 52103110125502.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 190582014249 + 20361519115876 = 436557^2 + 4512374^2 .

It is not a de Polignac number, because 20552101130125 - 2⁷ = 20552101129997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20552101130093 and 20552101130102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20552101130129) 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, 82208404396 + ... + 82208404645.

It is an arithmetic number, because the mean of its divisors is an integer number (3206127776319).

Almost surely, 2^{20552101130125} is an apocalyptic number.

20552101130125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20552101130125 is a deficient number, since it is larger than the sum of its proper divisors (5096921080427).

20552101130125 is an equidigital number, since it uses as much as digits as its factorization.

20552101130125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164416809056 (or 164416809046 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 28.

Adding to 20552101130125 its reverse (52103110125502), we get a palindrome (72655211255627).

The spelling of 20552101130125 in words is "twenty trillion, five hundred fifty-two billion, one hundred one million, one hundred thirty thousand, one hundred twenty-five".