20341225 has 12 divisors (see below), whose sum is σ = 25529616. Its totient is φ = 16075280.

The previous prime is 20341213. The next prime is 20341247. The reversal of 20341225 is 52214302.

It is a de Polignac number, because none of the positive numbers 2^k-20341225 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2827 + ... + 6976.

It is an arithmetic number, because the mean of its divisors is an integer number (2127468).

Almost surely, 2^20341225 is an apocalyptic number.

20341225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20341225 is a deficient number, since it is larger than the sum of its proper divisors (5188391).

20341225 is an equidigital number, since it uses as much as digits as its factorization.

20341225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9896 (or 9891 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 20341225 is about 4510.1247211136. The cubic root of 20341225 is about 272.9767766386.

Adding to 20341225 its reverse (52214302), we get a palindrome (72555527).

The spelling of 20341225 in words is "twenty million, three hundred forty-one thousand, two hundred twenty-five".