20000125 has 8 divisors (see below), whose sum is σ = 24960312. Its totient is φ = 16000000.

The previous prime is 20000107. The next prime is 20000147. The reversal of 20000125 is 52100002.

It can be written as a sum of positive squares in 4 ways, for example, as 622521 + 19377604 = 789^2 + 4402^2 .

It is not a de Polignac number, because 20000125 - 2⁵ = 20000093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79876 + ... + 80125.

It is an arithmetic number, because the mean of its divisors is an integer number (3120039).

Almost surely, 2^20000125 is an apocalyptic number.

20000125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20000125 is a deficient number, since it is larger than the sum of its proper divisors (4960187).

20000125 is an equidigital number, since it uses as much as digits as its factorization.

20000125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160016 (or 160006 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 20000125 is about 4472.1499304026. The cubic root of 20000125 is about 271.4423271620.

Adding to 20000125 its reverse (52100002), we get a palindrome (72100127).

The spelling of 20000125 in words is "twenty million, one hundred twenty-five", and thus it is an aban number.