20765053 has 4 divisors (see below), whose sum is σ = 20869600. Its totient is φ = 20660508.

The previous prime is 20765051. The next prime is 20765077. The reversal of 20765053 is 35056702.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20765053 - 2¹ = 20765051 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 (20765051) 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, 51975 + ... + 52372.

It is an arithmetic number, because the mean of its divisors is an integer number (5217400).

Almost surely, 2^20765053 is an apocalyptic number.

It is an amenable number.

20765053 is a deficient number, since it is larger than the sum of its proper divisors (104547).

20765053 is a wasteful number, since it uses less digits than its factorization.

20765053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104546.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 20765053 is about 4556.8687714263. The cubic root of 20765053 is about 274.8596661402.

The spelling of 20765053 in words is "twenty million, seven hundred sixty-five thousand, fifty-three".