20882543 has 6 divisors (see below), whose sum is σ = 22953672. Its totient is φ = 18984020.

The previous prime is 20882531. The next prime is 20882567. The reversal of 20882543 is 34528802.

It is not a de Polignac number, because 20882543 - 2⁶ = 20882479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20882573) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 86171 + ... + 86412.

It is an arithmetic number, because the mean of its divisors is an integer number (3825612).

Almost surely, 2^20882543 is an apocalyptic number.

20882543 is a deficient number, since it is larger than the sum of its proper divisors (2071129).

20882543 is a wasteful number, since it uses less digits than its factorization.

20882543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172605 (or 172594 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 20882543 is about 4569.7421152621. The cubic root of 20882543 is about 275.3770827042.

The spelling of 20882543 in words is "twenty million, eight hundred eighty-two thousand, five hundred forty-three".