11525865 has 16 divisors (see below), whose sum is σ = 19860288. Its totient is φ = 5674176.

The previous prime is 11525861. The next prime is 11525867. The reversal of 11525865 is 56852511.

11525865 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11525865 - 2² = 11525861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11525861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29359 + ... + 29748.

It is an arithmetic number, because the mean of its divisors is an integer number (1241268).

Almost surely, 2^11525865 is an apocalyptic number.

11525865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11525865 is a deficient number, since it is larger than the sum of its proper divisors (8334423).

11525865 is a wasteful number, since it uses less digits than its factorization.

11525865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59128.

The product of its digits is 12000, while the sum is 33.

The square root of 11525865 is about 3394.9764358534. The cubic root of 11525865 is about 225.8869680422.

The spelling of 11525865 in words is "eleven million, five hundred twenty-five thousand, eight hundred sixty-five".