2003905225 has 27 divisors (see below), whose sum is σ = 2892792807. Its totient is φ = 1373032080.

The previous prime is 2003905223. The next prime is 2003905247. The reversal of 2003905225 is 5225093002.

The square root of 2003905225 is 44765.

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., 721405881 + 1282499344 = 26859^2 + 35812^2 .

It is not a de Polignac number, because 2003905225 - 2¹ = 2003905223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2003905193 and 2003905202.

It is not an unprimeable number, because it can be changed into a prime (2003905223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1566136 + ... + 1567414.

Almost surely, 2^2003905225 is an apocalyptic number.

2003905225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2003905225 is the 44765-th square number.

2003905225 is the 22383-rd centered octagonal number.

It is an amenable number.

2003905225 is a deficient number, since it is larger than the sum of its proper divisors (888887582).

2003905225 is an frugal number, since it uses more digits than its factorization.

2003905225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2582 (or 1291 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The cubic root of 2003905225 is about 1260.7405625929.

Adding to 2003905225 its reverse (5225093002), we get a palindrome (7228998227).

The spelling of 2003905225 in words is "two billion, three million, nine hundred five thousand, two hundred twenty-five".