6425009105 has 4 divisors (see below), whose sum is σ = 7710010932. Its totient is φ = 5140007280.

The previous prime is 6425009089. The next prime is 6425009119. The reversal of 6425009105 is 5019005246.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 961434049 + 5463575056 = 31007^2 + 73916^2 .

It is not a de Polignac number, because 6425009105 - 2⁴ = 6425009089 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642500906 + ... + 642500915.

It is an arithmetic number, because the mean of its divisors is an integer number (1927502733).

Almost surely, 2^6425009105 is an apocalyptic number.

It is an amenable number.

6425009105 is a deficient number, since it is larger than the sum of its proper divisors (1285001827).

6425009105 is a wasteful number, since it uses less digits than its factorization.

6425009105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285001826.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 6425009105 is about 80156.1545048164. The cubic root of 6425009105 is about 1859.0507648293.

The spelling of 6425009105 in words is "six billion, four hundred twenty-five million, nine thousand, one hundred five".