20814053 has 8 divisors (see below), whose sum is σ = 22453368. Its totient is φ = 19180224.

The previous prime is 20814047. The next prime is 20814061. The reversal of 20814053 is 35041802.

It can be written as a sum of positive squares in 4 ways, for example, as 2209 + 20811844 = 47^2 + 4562^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20814053 - 2⁴ = 20814037 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 (20814023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10151 + ... + 12027.

It is an arithmetic number, because the mean of its divisors is an integer number (2806671).

Almost surely, 2^20814053 is an apocalyptic number.

It is an amenable number.

20814053 is a deficient number, since it is larger than the sum of its proper divisors (1639315).

20814053 is a wasteful number, since it uses less digits than its factorization.

20814053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2743.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 20814053 is about 4562.2421023001. The cubic root of 20814053 is about 275.0756948652.

Adding to 20814053 its reverse (35041802), we get a palindrome (55855855).

The spelling of 20814053 in words is "twenty million, eight hundred fourteen thousand, fifty-three".