6400305250 has 64 divisors (see below), whose sum is σ = 12221539200. Its totient is φ = 2509080000.

The previous prime is 6400305217. The next prime is 6400305269. The reversal of 6400305250 is 525030046.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9129900 + ... + 9130600.

It is an arithmetic number, because the mean of its divisors is an integer number (190961550).

Almost surely, 2^6400305250 is an apocalyptic number.

6400305250 is a deficient number, since it is larger than the sum of its proper divisors (5821233950).

6400305250 is a wasteful number, since it uses less digits than its factorization.

6400305250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396 (or 1386 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 6400305250 is about 80001.9077897521. The cubic root of 6400305250 is about 1856.6650505798.

Adding to 6400305250 its reverse (525030046), we get a palindrome (6925335296).

The spelling of 6400305250 in words is "six billion, four hundred million, three hundred five thousand, two hundred fifty".