11534312225 has 24 divisors (see below), whose sum is σ = 14407050360. Its totient is φ = 9160197120.

The previous prime is 11534312219. The next prime is 11534312233. The reversal of 11534312225 is 52221343511.

It can be written as a sum of positive squares in 12 ways, for example, as 6210064 + 11528102161 = 2492^2 + 107369^2 .

It is not a de Polignac number, because 11534312225 - 2⁶ = 11534312161 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3583817 + ... + 3587033.

It is an arithmetic number, because the mean of its divisors is an integer number (600293765).

Almost surely, 2^11534312225 is an apocalyptic number.

It is an amenable number.

11534312225 is a deficient number, since it is larger than the sum of its proper divisors (2872738135).

11534312225 is a wasteful number, since it uses less digits than its factorization.

11534312225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4229 (or 4224 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

Adding to 11534312225 its reverse (52221343511), we get a palindrome (63755655736).

The spelling of 11534312225 in words is "eleven billion, five hundred thirty-four million, three hundred twelve thousand, two hundred twenty-five".