11855495 has 4 divisors (see below), whose sum is σ = 14226600. Its totient is φ = 9484392.

The previous prime is 11855491. The next prime is 11855507. The reversal of 11855495 is 59455811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59455811 = 577 ⋅103043.

It is a cyclic number.

It is not a de Polignac number, because 11855495 - 2² = 11855491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11855491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1185545 + ... + 1185554.

It is an arithmetic number, because the mean of its divisors is an integer number (3556650).

Almost surely, 2^11855495 is an apocalyptic number.

11855495 is a deficient number, since it is larger than the sum of its proper divisors (2371105).

11855495 is an equidigital number, since it uses as much as digits as its factorization.

11855495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2371104.

The product of its digits is 36000, while the sum is 38.

The square root of 11855495 is about 3443.1809420941. The cubic root of 11855495 is about 228.0201518558.

The spelling of 11855495 in words is "eleven million, eight hundred fifty-five thousand, four hundred ninety-five".