203422025 has 6 divisors (see below), whose sum is σ = 252243342. Its totient is φ = 162737600.

The previous prime is 203421997. The next prime is 203422039. The reversal of 203422025 is 520224302.

It can be written as a sum of positive squares in 3 ways, for example, as 43930384 + 159491641 = 6628^2 + 12629^2 .

It is not a de Polignac number, because 203422025 - 2²⁰ = 202373449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203421988 and 203422006.

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, 4068416 + ... + 4068465.

It is an arithmetic number, because the mean of its divisors is an integer number (42040557).

Almost surely, 2^203422025 is an apocalyptic number.

203422025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

203422025 is a deficient number, since it is larger than the sum of its proper divisors (48821317).

203422025 is an equidigital number, since it uses as much as digits as its factorization.

203422025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8136891 (or 8136886 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 203422025 is about 14262.6093334986. The cubic root of 203422025 is about 588.1200575882.

Adding to 203422025 its reverse (520224302), we get a palindrome (723646327).

The spelling of 203422025 in words is "two hundred three million, four hundred twenty-two thousand, twenty-five".