20250042056 has 32 divisors (see below), whose sum is σ = 38340696600. Its totient is φ = 10026024960.

The previous prime is 20250042049. The next prime is 20250042067. The reversal of 20250042056 is 65024005202.

It can be written as a sum of positive squares in 4 ways, for example, as 1334440900 + 18915601156 = 36530^2 + 137534^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1010696 + ... + 1030536.

Almost surely, 2^20250042056 is an apocalyptic number.

It is an amenable number.

20250042056 is a deficient number, since it is larger than the sum of its proper divisors (18090654544).

20250042056 is a wasteful number, since it uses less digits than its factorization.

20250042056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21089 (or 21085 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 20250042056 its reverse (65024005202), we get a palindrome (85274047258).

The spelling of 20250042056 in words is "twenty billion, two hundred fifty million, forty-two thousand, fifty-six".