203225257 has 2 divisors, whose sum is σ = 203225258. Its totient is φ = 203225256.

The previous prime is 203225203. The next prime is 203225261. The reversal of 203225257 is 752522302.

203225257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154281241 + 48944016 = 12421^2 + 6996^2 .

It is a cyclic number.

It is not a de Polignac number, because 203225257 - 2⁷ = 203225129 is a prime.

It is not a weakly prime, because it can be changed into another prime (203225287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101612628 + 101612629.

It is an arithmetic number, because the mean of its divisors is an integer number (101612629).

Almost surely, 2^203225257 is an apocalyptic number.

It is an amenable number.

203225257 is a deficient number, since it is larger than the sum of its proper divisors (1).

203225257 is an equidigital number, since it uses as much as digits as its factorization.

203225257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 203225257 is about 14255.7096280753. The cubic root of 203225257 is about 587.9303689508.

Adding to 203225257 its reverse (752522302), we get a palindrome (955747559).

The spelling of 203225257 in words is "two hundred three million, two hundred twenty-five thousand, two hundred fifty-seven".