11051280 has 60 divisors (see below), whose sum is σ = 37116300. Its totient is φ = 2946816.

The previous prime is 11051273. The next prime is 11051297. The reversal of 11051280 is 8215011.

It can be written as a sum of positive squares in 2 ways, for example, as 3825936 + 7225344 = 1956^2 + 2688^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6955 + ... + 8394.

It is an arithmetic number, because the mean of its divisors is an integer number (618605).

Almost surely, 2^11051280 is an apocalyptic number.

11051280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11051280 is an abundant number, since it is smaller than the sum of its proper divisors (26065020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11051280 is a wasteful number, since it uses less digits than its factorization.

11051280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15368 (or 15359 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 11051280 is about 3324.3465523318. The cubic root of 11051280 is about 222.7430664403.

Adding to 11051280 its reverse (8215011), we get a palindrome (19266291).

It can be divided in two parts, 110512 and 80, that added together give a cube (110592 = 48³).

The spelling of 11051280 in words is "eleven million, fifty-one thousand, two hundred eighty".