11520251225 has 48 divisors (see below), whose sum is σ = 16632864000. Its totient is φ = 7752391680.

The previous prime is 11520251221. The next prime is 11520251231. The reversal of 11520251225 is 52215202511.

It is a happy number.

11520251225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11520251225 - 2² = 11520251221 is a prime.

It is a super-2 number, since 2×11520251225² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11520251194 and 11520251203.

It is not an unprimeable number, because it can be changed into a prime (11520251221) 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 47 ways as a sum of consecutive naturals, for example, 2131076 + ... + 2136474.

It is an arithmetic number, because the mean of its divisors is an integer number (346518000).

Almost surely, 2^11520251225 is an apocalyptic number.

It is an amenable number.

11520251225 is a deficient number, since it is larger than the sum of its proper divisors (5112612775).

11520251225 is a wasteful number, since it uses less digits than its factorization.

11520251225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5642 (or 5637 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

Adding to 11520251225 its reverse (52215202511), we get a palindrome (63735453736).

The spelling of 11520251225 in words is "eleven billion, five hundred twenty million, two hundred fifty-one thousand, two hundred twenty-five".