6445572050 has 24 divisors (see below), whose sum is σ = 12312788196. Its totient is φ = 2508546240.

The previous prime is 6445572031. The next prime is 6445572061. The reversal of 6445572050 is 502755446.

It can be written as a sum of positive squares in 6 ways, for example, as 2676717169 + 3768854881 = 51737^2 + 61391^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6445571995 and 6445572013.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1740197 + ... + 1743896.

Almost surely, 2^6445572050 is an apocalyptic number.

6445572050 is a deficient number, since it is larger than the sum of its proper divisors (5867216146).

6445572050 is a wasteful number, since it uses less digits than its factorization.

6445572050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3484142 (or 3484137 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 38.

The square root of 6445572050 is about 80284.3200755913. The cubic root of 6445572050 is about 1861.0319215103.

The spelling of 6445572050 in words is "six billion, four hundred forty-five million, five hundred seventy-two thousand, fifty".