20250043 has 8 divisors (see below), whose sum is σ = 23390640. Its totient is φ = 17326080.

The previous prime is 20250031. The next prime is 20250047. The reversal of 20250043 is 34005202.

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 20250043 - 2²¹ = 18152891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20249999 and 20250026.

It is not an unprimeable number, because it can be changed into a prime (20250047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53958 + ... + 54331.

It is an arithmetic number, because the mean of its divisors is an integer number (2923830).

Almost surely, 2^20250043 is an apocalyptic number.

20250043 is a deficient number, since it is larger than the sum of its proper divisors (3140597).

20250043 is a wasteful number, since it uses less digits than its factorization.

20250043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108317.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 20250043 is about 4500.0047777752. The cubic root of 20250043 is about 272.5682818535.

Adding to 20250043 its reverse (34005202), we get a palindrome (54255245).

The spelling of 20250043 in words is "twenty million, two hundred fifty thousand, forty-three".