20085025 has 12 divisors (see below), whose sum is σ = 24967152. Its totient is φ = 16028240.

The previous prime is 20085019. The next prime is 20085029. The reversal of 20085025 is 52058002.

It is not a de Polignac number, because 20085025 - 2³ = 20085017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20084987 and 20085005.

It is not an unprimeable number, because it can be changed into a prime (20085029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13362 + ... + 14788.

It is an arithmetic number, because the mean of its divisors is an integer number (2080596).

Almost surely, 2^20085025 is an apocalyptic number.

20085025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20085025 is a deficient number, since it is larger than the sum of its proper divisors (4882127).

20085025 is a wasteful number, since it uses less digits than its factorization.

20085025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000 (or 1995 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 20085025 is about 4481.6319572227. The cubic root of 20085025 is about 271.8258734506.

The spelling of 20085025 in words is "twenty million, eighty-five thousand, twenty-five".