6489343225 has 12 divisors (see below), whose sum is σ = 8091248620. Its totient is φ = 5162788800.

The previous prime is 6489343213. The next prime is 6489343247. The reversal of 6489343225 is 5223439846.

It can be written as a sum of positive squares in 6 ways, for example, as 153660816 + 6335682409 = 12396^2 + 79597^2 .

It is not a de Polignac number, because 6489343225 - 2⁷ = 6489343097 is a prime.

It is a super-2 number, since 2×6489343225² = 84223150983706801250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 712530 + ... + 721579.

Almost surely, 2^6489343225 is an apocalyptic number.

It is an amenable number.

6489343225 is a deficient number, since it is larger than the sum of its proper divisors (1601905395).

6489343225 is a wasteful number, since it uses less digits than its factorization.

6489343225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434300 (or 1434295 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 46.

The square root of 6489343225 is about 80556.4598589089. The cubic root of 6489343225 is about 1865.2351094514.

The spelling of 6489343225 in words is "six billion, four hundred eighty-nine million, three hundred forty-three thousand, two hundred twenty-five".