6445263250 has 32 divisors (see below), whose sum is σ = 12270061440. Its totient is φ = 2534402800.

The previous prime is 6445263241. The next prime is 6445263299. The reversal of 6445263250 is 523625446.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203734 + ... + 233233.

It is an arithmetic number, because the mean of its divisors is an integer number (383439420).

Almost surely, 2^6445263250 is an apocalyptic number.

6445263250 is a deficient number, since it is larger than the sum of its proper divisors (5824798190).

6445263250 is a wasteful number, since it uses less digits than its factorization.

6445263250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437043 (or 437033 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

The square root of 6445263250 is about 80282.3968874871. The cubic root of 6445263250 is about 1861.0022010639.

Adding to 6445263250 its reverse (523625446), we get a palindrome (6968888696).

The spelling of 6445263250 in words is "six billion, four hundred forty-five million, two hundred sixty-three thousand, two hundred fifty".