11956550 has 48 divisors (see below), whose sum is σ = 23918112. Its totient is φ = 4435200.

The previous prime is 11956531. The next prime is 11956577. The reversal of 11956550 is 5565911.

11956550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42410 + ... + 42690.

It is an arithmetic number, because the mean of its divisors is an integer number (498294).

Almost surely, 2^11956550 is an apocalyptic number.

11956550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11956550 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

11956550 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (11956549) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (348).

11956550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 32.

The square root of 11956550 is about 3457.8244605532. The cubic root of 11956550 is about 228.6661930346. Note that the first 3 decimals are identical.

The spelling of 11956550 in words is "eleven million, nine hundred fifty-six thousand, five hundred fifty".