20016125 has 16 divisors (see below), whose sum is σ = 25519104. Its totient is φ = 15667600.

The previous prime is 20016121. The next prime is 20016131. The reversal of 20016125 is 52161002.

It is not a de Polignac number, because 20016125 - 2² = 20016121 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20016121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4172 + ... + 7578.

It is an arithmetic number, because the mean of its divisors is an integer number (1594944).

Almost surely, 2^20016125 is an apocalyptic number.

20016125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20016125 is a deficient number, since it is larger than the sum of its proper divisors (5502979).

20016125 is an equidigital number, since it uses as much as digits as its factorization.

20016125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3469 (or 3459 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 20016125 is about 4473.9384215700. The cubic root of 20016125 is about 271.5146920364.

Adding to 20016125 its reverse (52161002), we get a palindrome (72177127).

The spelling of 20016125 in words is "twenty million, sixteen thousand, one hundred twenty-five".