11056257 has 24 divisors (see below), whose sum is σ = 16720704. Its totient is φ = 7300368.

The previous prime is 11056249. The next prime is 11056267. The reversal of 11056257 is 75265011.

It is not a de Polignac number, because 11056257 - 2³ = 11056249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 11056257.

It is not an unprimeable number, because it can be changed into a prime (11056207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41908 + ... + 42170.

It is an arithmetic number, because the mean of its divisors is an integer number (696696).

Almost surely, 2^11056257 is an apocalyptic number.

It is an amenable number.

11056257 is a deficient number, since it is larger than the sum of its proper divisors (5664447).

11056257 is an equidigital number, since it uses as much as digits as its factorization.

11056257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 11056257 is about 3325.0950362358. The cubic root of 11056257 is about 222.7764992451.

The spelling of 11056257 in words is "eleven million, fifty-six thousand, two hundred fifty-seven".