11780225 has 6 divisors (see below), whose sum is σ = 14607510. Its totient is φ = 9424160.

The previous prime is 11780207. The next prime is 11780227. The reversal of 11780225 is 52208711.

It can be written as a sum of positive squares in 3 ways, for example, as 8464 + 11771761 = 92^2 + 3431^2 .

It is not a de Polignac number, because 11780225 - 2¹² = 11776129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11780194 and 11780203.

It is not an unprimeable number, because it can be changed into a prime (11780227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 235580 + ... + 235629.

It is an arithmetic number, because the mean of its divisors is an integer number (2434585).

Almost surely, 2^11780225 is an apocalyptic number.

It is an amenable number.

11780225 is a deficient number, since it is larger than the sum of its proper divisors (2827285).

11780225 is an equidigital number, since it uses as much as digits as its factorization.

11780225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471219 (or 471214 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 11780225 is about 3432.2332379953. The cubic root of 11780225 is about 227.5365637806.

Adding to 11780225 its reverse (52208711), we get a palindrome (63988936).

The spelling of 11780225 in words is "eleven million, seven hundred eighty thousand, two hundred twenty-five".