11553859 has 2 divisors, whose sum is σ = 11553860. Its totient is φ = 11553858.

The previous prime is 11553847. The next prime is 11553887. The reversal of 11553859 is 95835511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11553859 - 2¹¹ = 11551811 is a prime.

It is not a weakly prime, because it can be changed into another prime (11553809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5776929 + 5776930.

It is an arithmetic number, because the mean of its divisors is an integer number (5776930).

Almost surely, 2^11553859 is an apocalyptic number.

11553859 is a deficient number, since it is larger than the sum of its proper divisors (1).

11553859 is an equidigital number, since it uses as much as digits as its factorization.

11553859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27000, while the sum is 37.

The square root of 11553859 is about 3399.0967917963. The cubic root of 11553859 is about 226.0696981365.

The spelling of 11553859 in words is "eleven million, five hundred fifty-three thousand, eight hundred fifty-nine".