11521125625 has 20 divisors (see below), whose sum is σ = 14599626624. Its totient is φ = 9087050000.

The previous prime is 11521125617. The next prime is 11521125631. The reversal of 11521125625 is 52652112511.

It is not a de Polignac number, because 11521125625 - 2³ = 11521125617 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 85441 + ... + 174190.

Almost surely, 2^11521125625 is an apocalyptic number.

It is an amenable number.

11521125625 is a deficient number, since it is larger than the sum of its proper divisors (3078500999).

11521125625 is an frugal number, since it uses more digits than its factorization.

11521125625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259722 (or 259707 counting only the distinct ones).

The product of its digits is 6000, while the sum is 31.

The spelling of 11521125625 in words is "eleven billion, five hundred twenty-one million, one hundred twenty-five thousand, six hundred twenty-five".