11530550 has 12 divisors (see below), whose sum is σ = 21446916. Its totient is φ = 4612200.

The previous prime is 11530531. The next prime is 11530559. The reversal of 11530550 is 5503511.

It is a happy number.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11530559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 115256 + ... + 115355.

It is an arithmetic number, because the mean of its divisors is an integer number (1787243).

Almost surely, 2^11530550 is an apocalyptic number.

11530550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11530550 is a deficient number, since it is larger than the sum of its proper divisors (9916366).

11530550 is a wasteful number, since it uses less digits than its factorization.

11530550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230623 (or 230618 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 11530550 is about 3395.6663558130. Note that the first 3 decimals coincide. The cubic root of 11530550 is about 225.9175698549.

The spelling of 11530550 in words is "eleven million, five hundred thirty thousand, five hundred fifty".