2163056 has 60 divisors (see below), whose sum is σ = 5088960. Its totient is φ = 887040.

The previous prime is 2163043. The next prime is 2163059. The reversal of 2163056 is 6503612.

2163056 = 249² + 250² + ... + 279².

It is a super-2 number, since 2×2163056² = 9357622518272, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24260 + ... + 24348.

It is an arithmetic number, because the mean of its divisors is an integer number (84816).

2^2163056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2163056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2544480).

2163056 is an abundant number, since it is smaller than the sum of its proper divisors (2925904).

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

2163056 is a wasteful number, since it uses less digits than its factorization.

2163056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 2163056 is about 1470.7331505069. The cubic root of 2163056 is about 129.3270151966.

Adding to 2163056 its reverse (6503612), we get a palindrome (8666668).

The spelling of 2163056 in words is "two million, one hundred sixty-three thousand, fifty-six".