20125041005 has 8 divisors (see below), whose sum is σ = 24545952024. Its totient is φ = 15836097600.

The previous prime is 20125040981. The next prime is 20125041011. The reversal of 20125041005 is 50014052102.

It can be written as a sum of positive squares in 4 ways, for example, as 321233929 + 19803807076 = 17923^2 + 140726^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20125041005 - 2¹⁰ = 20125039981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32991566 + ... + 32992175.

It is an arithmetic number, because the mean of its divisors is an integer number (3068244003).

Almost surely, 2^20125041005 is an apocalyptic number.

It is an amenable number.

20125041005 is a deficient number, since it is larger than the sum of its proper divisors (4420911019).

20125041005 is an equidigital number, since it uses as much as digits as its factorization.

20125041005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65983807.

The product of its (nonzero) digits is 400, while the sum is 20.

Adding to 20125041005 its reverse (50014052102), we get a palindrome (70139093107).

The spelling of 20125041005 in words is "twenty billion, one hundred twenty-five million, forty-one thousand, five".