11289550 has 24 divisors (see below), whose sum is σ = 21913776. Its totient is φ = 4319040.

The previous prime is 11289517. The next prime is 11289559. The reversal of 11289550 is 5598211.

11289550 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 not an unprimeable number, because it can be changed into a prime (11289559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3759 + ... + 6058.

It is an arithmetic number, because the mean of its divisors is an integer number (913074).

Almost surely, 2^11289550 is an apocalyptic number.

11289550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11289550 is a deficient number, since it is larger than the sum of its proper divisors (10624226).

11289550 is a wasteful number, since it uses less digits than its factorization.

11289550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9852 (or 9847 counting only the distinct ones).

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

The square root of 11289550 is about 3359.9925595156. The cubic root of 11289550 is about 224.3325073485.

The spelling of 11289550 in words is "eleven million, two hundred eighty-nine thousand, five hundred fifty".