11664525 has 48 divisors (see below), whose sum is σ = 20712960. Its totient is φ = 5779200.

The previous prime is 11664517. The next prime is 11664529. The reversal of 11664525 is 52546611.

It is not a de Polignac number, because 11664525 - 2³ = 11664517 is a prime.

It is a super-2 number, since 2×11664525² = 272122286951250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11664492 and 11664501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11664529) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67339 + ... + 67511.

It is an arithmetic number, because the mean of its divisors is an integer number (431520).

Almost surely, 2^11664525 is an apocalyptic number.

11664525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11664525 is a deficient number, since it is larger than the sum of its proper divisors (9048435).

11664525 is a wasteful number, since it uses less digits than its factorization.

11664525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 241 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 11664525 is about 3415.3367330323. The cubic root of 11664525 is about 226.7891914946.

The spelling of 11664525 in words is "eleven million, six hundred sixty-four thousand, five hundred twenty-five".