20744053 has 16 divisors (see below), whose sum is σ = 23592960. Its totient is φ = 18068400.

The previous prime is 20744051. The next prime is 20744081. The reversal of 20744053 is 35044702.

It is a cyclic number.

It is not a de Polignac number, because 20744053 - 2¹ = 20744051 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 (20744051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43068 + ... + 43546.

It is an arithmetic number, because the mean of its divisors is an integer number (1474560).

Almost surely, 2^20744053 is an apocalyptic number.

It is an amenable number.

20744053 is a deficient number, since it is larger than the sum of its proper divisors (2848907).

20744053 is a wasteful number, since it uses less digits than its factorization.

20744053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 20744053 is about 4554.5639747401. The cubic root of 20744053 is about 274.7669783621.

Adding to 20744053 its reverse (35044702), we get a palindrome (55788755).

The spelling of 20744053 in words is "twenty million, seven hundred forty-four thousand, fifty-three".