20005424050 has 24 divisors (see below), whose sum is σ = 39398919156. Its totient is φ = 7531453440.

The previous prime is 20005423979. The next prime is 20005424051. The reversal of 20005424050 is 5042450002.

It can be written as a sum of positive squares in 6 ways, for example, as 13838934321 + 6166489729 = 117639^2 + 78527^2 .

It is not an unprimeable number, because it can be changed into a prime (20005424051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11767047 + ... + 11768746.

Almost surely, 2^20005424050 is an apocalyptic number.

20005424050 is a deficient number, since it is larger than the sum of its proper divisors (19393495106).

20005424050 is a wasteful number, since it uses less digits than its factorization.

20005424050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23535822 (or 23535817 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

Adding to 20005424050 its reverse (5042450002), we get a palindrome (25047874052).

The spelling of 20005424050 in words is "twenty billion, five million, four hundred twenty-four thousand, fifty".