20852359 has 12 divisors (see below), whose sum is σ = 23142168. Its totient is φ = 18632000.

The previous prime is 20852347. The next prime is 20852369. The reversal of 20852359 is 95325802.

It is not a de Polignac number, because 20852359 - 2¹¹ = 20850311 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 (20852309) 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, 152139 + ... + 152275.

It is an arithmetic number, because the mean of its divisors is an integer number (1928514).

Almost surely, 2^20852359 is an apocalyptic number.

20852359 is a deficient number, since it is larger than the sum of its proper divisors (2289809).

20852359 is a wasteful number, since it uses less digits than its factorization.

20852359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 20852359 is about 4566.4383276247. The cubic root of 20852359 is about 275.2443404124.

It can be divided in two parts, 2085 and 2359, that added together give a palindrome (4444).

The spelling of 20852359 in words is "twenty million, eight hundred fifty-two thousand, three hundred fifty-nine".