11525980 has 12 divisors (see below), whose sum is σ = 24204600. Its totient is φ = 4610384.

The previous prime is 11525977. The next prime is 11525993. The reversal of 11525980 is 8952511.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 288130 + ... + 288169.

It is an arithmetic number, because the mean of its divisors is an integer number (2017050).

Almost surely, 2^11525980 is an apocalyptic number.

11525980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11525980 is an abundant number, since it is smaller than the sum of its proper divisors (12678620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11525980 is a wasteful number, since it uses less digits than its factorization.

11525980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576308 (or 576306 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 31.

The square root of 11525980 is about 3394.9933726003. The cubic root of 11525980 is about 225.8877193065.

The spelling of 11525980 in words is "eleven million, five hundred twenty-five thousand, nine hundred eighty".