11125661025 has 24 divisors (see below), whose sum is σ = 18402574144. Its totient is φ = 5931057600.

The previous prime is 11125661011. The next prime is 11125661069. The reversal of 11125661025 is 52016652111.

It is not a de Polignac number, because 11125661025 - 2⁸ = 11125660769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11125660983 and 11125661001.

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, 143892 + ... + 207258.

Almost surely, 2^11125661025 is an apocalyptic number.

11125661025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11125661025 is a deficient number, since it is larger than the sum of its proper divisors (7276913119).

11125661025 is a wasteful number, since it uses less digits than its factorization.

11125661025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65721 (or 65716 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 30.

The spelling of 11125661025 in words is "eleven billion, one hundred twenty-five million, six hundred sixty-one thousand, twenty-five".