10821056 has 14 divisors (see below), whose sum is σ = 21473160. Its totient is φ = 5410496.

The previous prime is 10821049. The next prime is 10821067. The reversal of 10821056 is 65012801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84476 + ... + 84603.

Almost surely, 2^10821056 is an apocalyptic number.

10821056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

10821056 is a deficient number, since it is larger than the sum of its proper divisors (10652104).

10821056 is an equidigital number, since it uses as much as digits as its factorization.

10821056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169091 (or 169081 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 10821056 is about 3289.5373534891. The cubic root of 10821056 is about 221.1854466040.

Adding to 10821056 its reverse (65012801), we get a palindrome (75833857).

The spelling of 10821056 in words is "ten million, eight hundred twenty-one thousand, fifty-six".