20041225 has 24 divisors (see below), whose sum is σ = 25817792. Its totient is φ = 15422400.

The previous prime is 20041213. The next prime is 20041237. The reversal of 20041225 is 52214002.

It is an interprime number because it is at equal distance from previous prime (20041213) and next prime (20041237).

It is a de Polignac number, because none of the positive numbers 2^k-20041225 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20041199 and 20041208.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 110635 + ... + 110815.

Almost surely, 2^20041225 is an apocalyptic number.

20041225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20041225 is a deficient number, since it is larger than the sum of its proper divisors (5776567).

20041225 is a wasteful number, since it uses less digits than its factorization.

20041225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 20041225 is about 4476.7426774386. The cubic root of 20041225 is about 271.6281367733.

Adding to 20041225 its reverse (52214002), we get a palindrome (72255227).

The spelling of 20041225 in words is "twenty million, forty-one thousand, two hundred twenty-five".