20441025 has 48 divisors (see below), whose sum is σ = 40979520. Its totient is φ = 9907200.

The previous prime is 20441023. The next prime is 20441033. The reversal of 20441025 is 52014402.

It is not a de Polignac number, because 20441025 - 2¹ = 20441023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20440989 and 20441007.

It is not an unprimeable number, because it can be changed into a prime (20441023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6049 + ... + 8801.

It is an arithmetic number, because the mean of its divisors is an integer number (853740).

Almost surely, 2^20441025 is an apocalyptic number.

20441025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20441025 is an abundant number, since it is smaller than the sum of its proper divisors (20538495).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20441025 is a wasteful number, since it uses less digits than its factorization.

20441025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2783 (or 2772 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 20441025 is about 4521.1751790878. The cubic root of 20441025 is about 273.4224831481.

Adding to 20441025 its reverse (52014402), we get a palindrome (72455427).

The spelling of 20441025 in words is "twenty million, four hundred forty-one thousand, twenty-five".