11771225 has 12 divisors (see below), whose sum is σ = 15455484. Its totient is φ = 8862720.

The previous prime is 11771213. The next prime is 11771257. The reversal of 11771225 is 52217711.

It can be written as a sum of positive squares in 6 ways, for example, as 1247689 + 10523536 = 1117^2 + 3244^2 .

It is not a de Polignac number, because 11771225 - 2¹⁸ = 11509081 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11771194 and 11771203.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13424 + ... + 14273.

It is an arithmetic number, because the mean of its divisors is an integer number (1287957).

Almost surely, 2^11771225 is an apocalyptic number.

It is an amenable number.

11771225 is a deficient number, since it is larger than the sum of its proper divisors (3684259).

11771225 is a wasteful number, since it uses less digits than its factorization.

11771225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27724 (or 27719 counting only the distinct ones).

The product of its digits is 980, while the sum is 26.

The square root of 11771225 is about 3430.9218877730. The cubic root of 11771225 is about 227.4786036312.

Adding to 11771225 its reverse (52217711), we get a palindrome (63988936).

The spelling of 11771225 in words is "eleven million, seven hundred seventy-one thousand, two hundred twenty-five".