11056778 has 4 divisors (see below), whose sum is σ = 16585170. Its totient is φ = 5528388.

The previous prime is 11056751. The next prime is 11056789. The reversal of 11056778 is 87765011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87765011 = 281 ⋅312331.

It can be written as a sum of positive squares in only one way, i.e., 11002489 + 54289 = 3317^2 + 233^2 .

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 as a sum of consecutive naturals, namely, 2764193 + ... + 2764196.

Almost surely, 2^11056778 is an apocalyptic number.

11056778 is a deficient number, since it is larger than the sum of its proper divisors (5528392).

11056778 is an equidigital number, since it uses as much as digits as its factorization.

11056778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5528391.

The product of its (nonzero) digits is 11760, while the sum is 35.

The square root of 11056778 is about 3325.1733789383. The cubic root of 11056778 is about 222.7799984623.

The spelling of 11056778 in words is "eleven million, fifty-six thousand, seven hundred seventy-eight".