203205025 has 9 divisors (see below), whose sum is σ = 252062643. Its totient is φ = 162507000.

The previous prime is 203204993. The next prime is 203205043. The reversal of 203205025 is 520502302.

The square root of 203205025 is 14255.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 73153809 + 130051216 = 8553^2 + 11404^2 .

It is not a de Polignac number, because 203205025 - 2⁵ = 203204993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203204993 and 203205011.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 69850 + ... + 72700.

Almost surely, 2^203205025 is an apocalyptic number.

203205025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

203205025 is the 14255-th square number.

203205025 is the 7128-th centered octagonal number.

It is an amenable number.

203205025 is a deficient number, since it is larger than the sum of its proper divisors (48857618).

203205025 is an frugal number, since it uses more digits than its factorization.

203205025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5712 (or 2856 counting only the distinct ones).

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

The cubic root of 203205025 is about 587.9108579213.

Adding to 203205025 its reverse (520502302), we get a palindrome (723707327).

The spelling of 203205025 in words is "two hundred three million, two hundred five thousand, twenty-five".