20202025 has 6 divisors (see below), whose sum is σ = 25050542. Its totient is φ = 16161600.

The previous prime is 20202019. The next prime is 20202029. The reversal of 20202025 is 52020202.

It can be written as a sum of positive squares in 3 ways, for example, as 5517801 + 14684224 = 2349^2 + 3832^2 .

It is not a de Polignac number, because 20202025 - 2⁷ = 20201897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20201996 and 20202014.

It is not an unprimeable number, because it can be changed into a prime (20202029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 404016 + ... + 404065.

Almost surely, 2^20202025 is an apocalyptic number.

20202025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20202025 is a deficient number, since it is larger than the sum of its proper divisors (4848517).

20202025 is an equidigital number, since it uses as much as digits as its factorization.

20202025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808091 (or 808086 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 20202025 is about 4494.6662834965. Note that the first 3 decimals coincide. The cubic root of 20202025 is about 272.3526684423.

Adding to 20202025 its reverse (52020202), we get a palindrome (72222227).

The spelling of 20202025 in words is "twenty million, two hundred two thousand, twenty-five".