11056247 has 4 divisors (see below), whose sum is σ = 11130600. Its totient is φ = 10981896.

The previous prime is 11056237. The next prime is 11056249. The reversal of 11056247 is 74265011.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-11056247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11056249) 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, 36953 + ... + 37250.

It is an arithmetic number, because the mean of its divisors is an integer number (2782650).

Almost surely, 2^11056247 is an apocalyptic number.

11056247 is a deficient number, since it is larger than the sum of its proper divisors (74353).

11056247 is an equidigital number, since it uses as much as digits as its factorization.

11056247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74352.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 11056247 is about 3325.0935325190. The cubic root of 11056247 is about 222.7764320806.

The spelling of 11056247 in words is "eleven million, fifty-six thousand, two hundred forty-seven".