20006125 has 8 divisors (see below), whose sum is σ = 24967800. Its totient is φ = 16004800.

The previous prime is 20006123. The next prime is 20006149. The reversal of 20006125 is 52160002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 522729 + 19483396 = 723^2 + 4414^2 .

It is not a de Polignac number, because 20006125 - 2¹ = 20006123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20006099 and 20006108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20006123) 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, 79900 + ... + 80149.

It is an arithmetic number, because the mean of its divisors is an integer number (3120975).

Almost surely, 2^20006125 is an apocalyptic number.

20006125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20006125 is a deficient number, since it is larger than the sum of its proper divisors (4961675).

20006125 is an equidigital number, since it uses as much as digits as its factorization.

20006125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160064 (or 160054 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 20006125 is about 4472.8206983960. The cubic root of 20006125 is about 271.4694685111.

Adding to 20006125 its reverse (52160002), we get a palindrome (72166127).

It can be divided in two parts, 2000 and 6125, that multiplied together give a square (12250000 = 3500²).

The spelling of 20006125 in words is "twenty million, six thousand, one hundred twenty-five".