20050743 has 4 divisors (see below), whose sum is σ = 26734328. Its totient is φ = 13367160.

The previous prime is 20050741. The next prime is 20050759. The reversal of 20050743 is 34705002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20050743 - 2¹ = 20050741 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 (20050741) 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, 3341788 + ... + 3341793.

It is an arithmetic number, because the mean of its divisors is an integer number (6683582).

Almost surely, 2^20050743 is an apocalyptic number.

20050743 is a deficient number, since it is larger than the sum of its proper divisors (6683585).

20050743 is an equidigital number, since it uses as much as digits as its factorization.

20050743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6683584.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 20050743 is about 4477.8056009613. The cubic root of 20050743 is about 271.6711306094.

Adding to 20050743 its reverse (34705002), we get a palindrome (54755745).

The spelling of 20050743 in words is "twenty million, fifty thousand, seven hundred forty-three".