11532135225 has 24 divisors (see below), whose sum is σ = 20533116352. Its totient is φ = 5677358400.

The previous prime is 11532135151. The next prime is 11532135227. The reversal of 11532135225 is 52253123511.

It is not a de Polignac number, because 11532135225 - 2⁸ = 11532134969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11532135192 and 11532135201.

It is not an unprimeable number, because it can be changed into a prime (11532135227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5912941 + ... + 5914890.

Almost surely, 2^11532135225 is an apocalyptic number.

11532135225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11532135225 is a deficient number, since it is larger than the sum of its proper divisors (9000981127).

11532135225 is a wasteful number, since it uses less digits than its factorization.

11532135225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11827857 (or 11827852 counting only the distinct ones).

The product of its digits is 9000, while the sum is 30.

Adding to 11532135225 its reverse (52253123511), we get a palindrome (63785258736).

The spelling of 11532135225 in words is "eleven billion, five hundred thirty-two million, one hundred thirty-five thousand, two hundred twenty-five".