20604250043 has 8 divisors (see below), whose sum is σ = 22565281200. Its totient is φ = 18696945888.

The previous prime is 20604250027. The next prime is 20604250067. The reversal of 20604250043 is 34005240602.

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 20604250043 - 2⁴ = 20604250027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20604249994 and 20604250021.

It is not an unprimeable number, because it can be changed into a prime (20604250013) 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, 13430948 + ... + 13432481.

It is an arithmetic number, because the mean of its divisors is an integer number (2820660150).

Almost surely, 2^20604250043 is an apocalyptic number.

20604250043 is a deficient number, since it is larger than the sum of its proper divisors (1961031157).

20604250043 is a wasteful number, since it uses less digits than its factorization.

20604250043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26863501.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 20604250043 its reverse (34005240602), we get a palindrome (54609490645).

The spelling of 20604250043 in words is "twenty billion, six hundred four million, two hundred fifty thousand, forty-three".