11561725 has 12 divisors (see below), whose sum is σ = 16384864. Its totient is φ = 7927920.

The previous prime is 11561707. The next prime is 11561731. The reversal of 11561725 is 52716511.

It is not a de Polignac number, because 11561725 - 2⁹ = 11561213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11561693 and 11561702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32859 + ... + 33208.

Almost surely, 2^11561725 is an apocalyptic number.

It is an amenable number.

11561725 is a deficient number, since it is larger than the sum of its proper divisors (4823139).

11561725 is an equidigital number, since it uses as much as digits as its factorization.

11561725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66084 (or 66079 counting only the distinct ones).

The product of its digits is 2100, while the sum is 28.

The square root of 11561725 is about 3400.2536670078. The cubic root of 11561725 is about 226.1209901144.

The spelling of 11561725 in words is "eleven million, five hundred sixty-one thousand, seven hundred twenty-five".