203532225 has 48 divisors (see below), whose sum is σ = 364560000. Its totient is φ = 99601920.

The previous prime is 203532209. The next prime is 203532229. The reversal of 203532225 is 522235302.

It is not a de Polignac number, because 203532225 - 2⁴ = 203532209 is a prime.

It is a super-2 number, since 2×203532225² = 82850733226901250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 203532195 and 203532204.

It is not an unprimeable number, because it can be changed into a prime (203532229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 193501 + ... + 194549.

It is an arithmetic number, because the mean of its divisors is an integer number (7595000).

Almost surely, 2^203532225 is an apocalyptic number.

203532225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

203532225 is a deficient number, since it is larger than the sum of its proper divisors (161027775).

203532225 is a wasteful number, since it uses less digits than its factorization.

203532225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274 (or 1269 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 203532225 is about 14266.4720586415. The cubic root of 203532225 is about 588.2262393557.

Adding to 203532225 its reverse (522235302), we get a palindrome (725767527).

It can be divided in two parts, 20353 and 2225, that added together give a triangular number (22578 = T₂₁₂).

The spelling of 203532225 in words is "two hundred three million, five hundred thirty-two thousand, two hundred twenty-five".