11525978 has 16 divisors (see below), whose sum is σ = 17799936. Its totient is φ = 5594400.

The previous prime is 11525977. The next prime is 11525993. The reversal of 11525978 is 87952511.

It is not an unprimeable number, because it can be changed into a prime (11525977) 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, 18878 + ... + 19478.

It is an arithmetic number, because the mean of its divisors is an integer number (1112496).

Almost surely, 2^11525978 is an apocalyptic number.

11525978 is a deficient number, since it is larger than the sum of its proper divisors (6273958).

11525978 is a wasteful number, since it uses less digits than its factorization.

11525978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869.

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

The square root of 11525978 is about 3394.9930780489. The cubic root of 11525978 is about 225.8877062411.

The spelling of 11525978 in words is "eleven million, five hundred twenty-five thousand, nine hundred seventy-eight".