20050653 has 12 divisors (see below), whose sum is σ = 31099200. Its totient is φ = 11457432.

The previous prime is 20050651. The next prime is 20050661. The reversal of 20050653 is 35605002.

It is not a de Polignac number, because 20050653 - 2¹ = 20050651 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20050651) 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, 68053 + ... + 68346.

It is an arithmetic number, because the mean of its divisors is an integer number (2591600).

Almost surely, 2^20050653 is an apocalyptic number.

It is an amenable number.

20050653 is a deficient number, since it is larger than the sum of its proper divisors (11048547).

20050653 is a wasteful number, since it uses less digits than its factorization.

20050653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136416 (or 136409 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 20050653 is about 4477.7955513846. The cubic root of 20050653 is about 271.6707241334.

Adding to 20050653 its reverse (35605002), we get a palindrome (55655655).

The spelling of 20050653 in words is "twenty million, fifty thousand, six hundred fifty-three".