1803276225 has 81 divisors (see below), whose sum is σ = 3431839593. Its totient is φ = 905014080.

The previous prime is 1803276203. The next prime is 1803276313. The reversal of 1803276225 is 5226723081.

The square root of 1803276225 is 42465.

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

1803276225 is a `hidden beast` number, since 1 + 8 + 0 + 3 + 27 + 622 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 538193601 + 1265082624 = 23199^2 + 35568^2 .

It is not a de Polignac number, because 1803276225 - 2²³ = 1794887617 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1803276225.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 12102451 + ... + 12102599.

Almost surely, 2^1803276225 is an apocalyptic number.

1803276225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1803276225 is the 42465-th square number.

1803276225 is the 21233-rd centered octagonal number.

It is an amenable number.

1803276225 is a deficient number, since it is larger than the sum of its proper divisors (1628563368).

1803276225 is a wasteful number, since it uses less digits than its factorization.

1803276225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The cubic root of 1803276225 is about 1217.1779763284.

Multiplying 1803276225 by its sum of digits (36), we get a square (64917944100 = 254790²).

The spelling of 1803276225 in words is "one billion, eight hundred three million, two hundred seventy-six thousand, two hundred twenty-five".