11555455 has 8 divisors (see below), whose sum is σ = 13907952. Its totient is φ = 9216768.

The previous prime is 11555449. The next prime is 11555473. The reversal of 11555455 is 55455511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11555455 - 2⁹ = 11554943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1509 + ... + 5038.

It is an arithmetic number, because the mean of its divisors is an integer number (1738494).

Almost surely, 2^11555455 is an apocalyptic number.

11555455 is a deficient number, since it is larger than the sum of its proper divisors (2352497).

11555455 is an equidigital number, since it uses as much as digits as its factorization.

11555455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6905.

The product of its digits is 12500, while the sum is 31.

The square root of 11555455 is about 3399.3315519378. The cubic root of 11555455 is about 226.0801070866.

It can be divided in two parts, 11555 and 455, that multiplied together give a palindrome (5257525).

The spelling of 11555455 in words is "eleven million, five hundred fifty-five thousand, four hundred fifty-five".