11751225 has 12 divisors (see below), whose sum is σ = 19428816. Its totient is φ = 6267280.

The previous prime is 11751221. The next prime is 11751227. The reversal of 11751225 is 52215711.

It is not a de Polignac number, because 11751225 - 2² = 11751221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11751195 and 11751204.

It is not an unprimeable number, because it can be changed into a prime (11751221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78267 + ... + 78416.

It is an arithmetic number, because the mean of its divisors is an integer number (1619068).

Almost surely, 2^11751225 is an apocalyptic number.

11751225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11751225 is a deficient number, since it is larger than the sum of its proper divisors (7677591).

11751225 is a wasteful number, since it uses less digits than its factorization.

11751225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156696 (or 156691 counting only the distinct ones).

The product of its digits is 700, while the sum is 24.

The square root of 11751225 is about 3428.0059801581. The cubic root of 11751225 is about 227.3496974448.

Adding to 11751225 its reverse (52215711), we get a palindrome (63966936).

The spelling of 11751225 in words is "eleven million, seven hundred fifty-one thousand, two hundred twenty-five".