20853059 has 4 divisors (see below), whose sum is σ = 21572160. Its totient is φ = 20133960.

The previous prime is 20853047. The next prime is 20853061. The reversal of 20853059 is 95035802.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20853059 - 2⁴ = 20853043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20853559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359507 + ... + 359564.

It is an arithmetic number, because the mean of its divisors is an integer number (5393040).

Almost surely, 2^20853059 is an apocalyptic number.

20853059 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

20853059 is a deficient number, since it is larger than the sum of its proper divisors (719101).

20853059 is an equidigital number, since it uses as much as digits as its factorization.

20853059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719100.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 20853059 is about 4566.5149731497. The cubic root of 20853059 is about 275.2474203019.

The spelling of 20853059 in words is "twenty million, eight hundred fifty-three thousand, fifty-nine".