20125044125 has 32 divisors (see below), whose sum is σ = 26727667200. Its totient is φ = 15076512000.

The previous prime is 20125044119. The next prime is 20125044133. The reversal of 20125044125 is 52144052102.

It is not a de Polignac number, because 20125044125 - 2¹⁰ = 20125043101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20125044094 and 20125044103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 399080 + ... + 446670.

It is an arithmetic number, because the mean of its divisors is an integer number (835239600).

Almost surely, 2^20125044125 is an apocalyptic number.

20125044125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20125044125 is a deficient number, since it is larger than the sum of its proper divisors (6602623075).

20125044125 is a wasteful number, since it uses less digits than its factorization.

20125044125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47822 (or 47812 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 20125044125 its reverse (52144052102), we get a palindrome (72269096227).

The spelling of 20125044125 in words is "twenty billion, one hundred twenty-five million, forty-four thousand, one hundred twenty-five".