20054144125 has 32 divisors (see below), whose sum is σ = 25868583936. Its totient is φ = 15505560000.

The previous prime is 20054144113. The next prime is 20054144171. The reversal of 20054144125 is 52144145002.

It is a de Polignac number, because none of the positive numbers 2^k-20054144125 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20054144093 and 20054144102.

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, 3418695 + ... + 3424555.

It is an arithmetic number, because the mean of its divisors is an integer number (808393248).

Almost surely, 2^20054144125 is an apocalyptic number.

20054144125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20054144125 is a deficient number, since it is larger than the sum of its proper divisors (5814439811).

20054144125 is an equidigital number, since it uses as much as digits as its factorization.

20054144125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6790 (or 6780 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 20054144125 its reverse (52144145002), we get a palindrome (72198289127).

The spelling of 20054144125 in words is "twenty billion, fifty-four million, one hundred forty-four thousand, one hundred twenty-five".