20052743 has 8 divisors (see below), whose sum is σ = 20684160. Its totient is φ = 19431160.

The previous prime is 20052719. The next prime is 20052751. The reversal of 20052743 is 34725002.

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 20052743 - 2²² = 15858439 is a prime.

It is a super-2 number, since 2×20052743² = 804225003648098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20052793) 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, 1796 + ... + 6582.

It is an arithmetic number, because the mean of its divisors is an integer number (2585520).

Almost surely, 2^20052743 is an apocalyptic number.

20052743 is a deficient number, since it is larger than the sum of its proper divisors (631417).

20052743 is an equidigital number, since it uses as much as digits as its factorization.

20052743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4917.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 20052743 is about 4478.0289190670. The cubic root of 20052743 is about 271.6801630959.

Adding to 20052743 its reverse (34725002), we get a palindrome (54777745).

The spelling of 20052743 in words is "twenty million, fifty-two thousand, seven hundred forty-three".