20235025 has 6 divisors (see below), whose sum is σ = 25091462. Its totient is φ = 16188000.

The previous prime is 20235013. The next prime is 20235031. The reversal of 20235025 is 52053202.

It can be written as a sum of positive squares in 3 ways, for example, as 3268864 + 16966161 = 1808^2 + 4119^2 .

It is not a de Polignac number, because 20235025 - 2⁵ = 20234993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20234993 and 20235011.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 404676 + ... + 404725.

Almost surely, 2^20235025 is an apocalyptic number.

20235025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20235025 is a deficient number, since it is larger than the sum of its proper divisors (4856437).

20235025 is an equidigital number, since it uses as much as digits as its factorization.

20235025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809411 (or 809406 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 20235025 is about 4498.3358033833. The cubic root of 20235025 is about 272.5008837611.

Adding to 20235025 its reverse (52053202), we get a palindrome (72288227).

The spelling of 20235025 in words is "twenty million, two hundred thirty-five thousand, twenty-five".