6501925 has 12 divisors (see below), whose sum is σ = 8099680. Its totient is φ = 5177520.

The previous prime is 6501889. The next prime is 6501947. The reversal of 6501925 is 5291056.

It is not a de Polignac number, because 6501925 - 2⁷ = 6501797 is a prime.

It is an Ulam number.

6501925 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6501893 and 6501902.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6616 + ... + 7534.

Almost surely, 2^6501925 is an apocalyptic number.

It is an amenable number.

6501925 is a deficient number, since it is larger than the sum of its proper divisors (1597755).

6501925 is a wasteful number, since it uses less digits than its factorization.

6501925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212 (or 1207 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 6501925 is about 2549.8872524094. The cubic root of 6501925 is about 186.6439793147.

The spelling of 6501925 in words is "six million, five hundred one thousand, nine hundred twenty-five".