11868555 has 16 divisors (see below), whose sum is σ = 19349280. Its totient is φ = 6210048.

The previous prime is 11868541. The next prime is 11868589. The reversal of 11868555 is 55586811.

11868555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11868555 - 2⁷ = 11868427 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6670 + ... + 8259.

It is an arithmetic number, because the mean of its divisors is an integer number (1209330).

Almost surely, 2^11868555 is an apocalyptic number.

11868555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11868555 is a deficient number, since it is larger than the sum of its proper divisors (7480725).

11868555 is a wasteful number, since it uses less digits than its factorization.

11868555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14990.

The product of its digits is 48000, while the sum is 39.

The square root of 11868555 is about 3445.0769222181. The cubic root of 11868555 is about 228.1038500440.

The spelling of 11868555 in words is "eleven million, eight hundred sixty-eight thousand, five hundred fifty-five".