11855506 has 32 divisors (see below), whose sum is σ = 20442240. Its totient is φ = 5111424.

The previous prime is 11855491. The next prime is 11855507. The reversal of 11855506 is 60555811.

11855506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11855507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50766 + ... + 50998.

It is an arithmetic number, because the mean of its divisors is an integer number (638820).

Almost surely, 2^11855506 is an apocalyptic number.

11855506 is a deficient number, since it is larger than the sum of its proper divisors (8586734).

11855506 is a wasteful number, since it uses less digits than its factorization.

11855506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370.

The product of its (nonzero) digits is 6000, while the sum is 31.

The square root of 11855506 is about 3443.1825394539. The cubic root of 11855506 is about 228.0202223779.

The spelling of 11855506 in words is "eleven million, eight hundred fifty-five thousand, five hundred six".