11555245 has 16 divisors (see below), whose sum is σ = 15004080. Its totient is φ = 8492544.

The previous prime is 11555213. The next prime is 11555263. The reversal of 11555245 is 54255511.

It can be written as a sum of positive squares in 8 ways, for example, as 459684 + 11095561 = 678^2 + 3331^2 .

It is a cyclic number.

It is not a de Polignac number, because 11555245 - 2⁵ = 11555213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25057 + ... + 25513.

It is an arithmetic number, because the mean of its divisors is an integer number (937755).

Almost surely, 2^11555245 is an apocalyptic number.

It is an amenable number.

11555245 is a deficient number, since it is larger than the sum of its proper divisors (3448835).

11555245 is a wasteful number, since it uses less digits than its factorization.

11555245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864.

The product of its digits is 5000, while the sum is 28.

The square root of 11555245 is about 3399.3006633718. The cubic root of 11555245 is about 226.0787375426.

It can be divided in two parts, 1155 and 5245, that added together give a square (6400 = 80²).

The spelling of 11555245 in words is "eleven million, five hundred fifty-five thousand, two hundred forty-five".