20053025 has 6 divisors (see below), whose sum is σ = 24865782. Its totient is φ = 16042400.

The previous prime is 20053021. The next prime is 20053043. The reversal of 20053025 is 52035002.

It can be written as a sum of positive squares in 3 ways, for example, as 833569 + 19219456 = 913^2 + 4384^2 .

It is not a de Polignac number, because 20053025 - 2² = 20053021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20052994 and 20053012.

It is not an unprimeable number, because it can be changed into a prime (20053021) 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, 401036 + ... + 401085.

It is an arithmetic number, because the mean of its divisors is an integer number (4144297).

Almost surely, 2^20053025 is an apocalyptic number.

20053025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20053025 is a deficient number, since it is larger than the sum of its proper divisors (4812757).

20053025 is an equidigital number, since it uses as much as digits as its factorization.

20053025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802131 (or 802126 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 20053025 is about 4478.0604060240. The cubic root of 20053025 is about 271.6814366282.

Adding to 20053025 its reverse (52035002), we get a palindrome (72088027).

The spelling of 20053025 in words is "twenty million, fifty-three thousand, twenty-five".