11530520 has 32 divisors (see below), whose sum is σ = 26183520. Its totient is φ = 4569600.

The previous prime is 11530513. The next prime is 11530529. The reversal of 11530520 is 2503511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11530529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3245 + ... + 5795.

It is an arithmetic number, because the mean of its divisors is an integer number (818235).

Almost surely, 2^11530520 is an apocalyptic number.

11530520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11530520 is an abundant number, since it is smaller than the sum of its proper divisors (14653000).

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

11530520 is a wasteful number, since it uses less digits than its factorization.

11530520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2675 (or 2671 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 11530520 is about 3395.6619384150. The cubic root of 11530520 is about 225.9173739252.

The spelling of 11530520 in words is "eleven million, five hundred thirty thousand, five hundred twenty".