11525987 has 8 divisors (see below), whose sum is σ = 12690480. Its totient is φ = 10380960.

The previous prime is 11525977. The next prime is 11525993. The reversal of 11525987 is 78952511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11525987 - 2⁶ = 11525923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11525987.

It is not an unprimeable number, because it can be changed into a prime (11525957) 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 7 ways as a sum of consecutive naturals, for example, 3608 + ... + 6005.

It is an arithmetic number, because the mean of its divisors is an integer number (1586310).

Almost surely, 2^11525987 is an apocalyptic number.

11525987 is a deficient number, since it is larger than the sum of its proper divisors (1164493).

11525987 is a wasteful number, since it uses less digits than its factorization.

11525987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9733.

The product of its digits is 25200, while the sum is 38.

The square root of 11525987 is about 3394.9944035300. The cubic root of 11525987 is about 225.8877650355.

Adding to 11525987 its sum of digits (38), we get a square (11526025 = 3395²).

The spelling of 11525987 in words is "eleven million, five hundred twenty-five thousand, nine hundred eighty-seven".