11955853 has 18 divisors (see below), whose sum is σ = 15087786. Its totient is φ = 9390528.

The previous prime is 11955851. The next prime is 11955869. The reversal of 11955853 is 35855911.

It can be written as a sum of positive squares in 3 ways, for example, as 946729 + 11009124 = 973^2 + 3318^2 .

It is not a de Polignac number, because 11955853 - 2¹ = 11955851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11955851) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 87201 + ... + 87337.

Almost surely, 2^11955853 is an apocalyptic number.

11955853 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11955853 is a deficient number, since it is larger than the sum of its proper divisors (3131933).

11955853 is an equidigital number, since it uses as much as digits as its factorization.

11955853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 157 counting only the distinct ones).

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

The square root of 11955853 is about 3457.7236731700. The cubic root of 11955853 is about 228.6617496282.

The spelling of 11955853 in words is "eleven million, nine hundred fifty-five thousand, eight hundred fifty-three".