11528550 has 144 divisors (see below), whose sum is σ = 36037872. Its totient is φ = 2611200.

The previous prime is 11528537. The next prime is 11528563. The reversal of 11528550 is 5582511.

It is an interprime number because it is at equal distance from previous prime (11528537) and next prime (11528563).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 84082 + ... + 84218.

It is an arithmetic number, because the mean of its divisors is an integer number (250263).

Almost surely, 2^11528550 is an apocalyptic number.

11528550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11528550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18018936).

11528550 is an abundant number, since it is smaller than the sum of its proper divisors (24509322).

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

11528550 is a wasteful number, since it uses less digits than its factorization.

11528550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The square root of 11528550 is about 3395.3718500335. The cubic root of 11528550 is about 225.9045071284.

The spelling of 11528550 in words is "eleven million, five hundred twenty-eight thousand, five hundred fifty".