20833056 has 36 divisors (see below), whose sum is σ = 59244822. Its totient is φ = 6944256.

The previous prime is 20833039. The next prime is 20833067. The reversal of 20833056 is 65033802.

It can be written as a sum of positive squares in only one way, i.e., 19184400 + 1648656 = 4380^2 + 1284^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35881 + ... + 36456.

Almost surely, 2^20833056 is an apocalyptic number.

It is an amenable number.

20833056 is an abundant number, since it is smaller than the sum of its proper divisors (38411766).

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

20833056 is a wasteful number, since it uses less digits than its factorization.

20833056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72353 (or 72342 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 20833056 is about 4564.3242654308. The cubic root of 20833056 is about 275.1593830898.

Adding to 20833056 its reverse (65033802), we get a palindrome (85866858).

The spelling of 20833056 in words is "twenty million, eight hundred thirty-three thousand, fifty-six".