6505172 has 12 divisors (see below), whose sum is σ = 11491200. Its totient is φ = 3221976.

The previous prime is 6505153. The next prime is 6505181. The reversal of 6505172 is 2715056.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7172 + ... + 8027.

It is an arithmetic number, because the mean of its divisors is an integer number (957600).

Almost surely, 2^6505172 is an apocalyptic number.

It is an amenable number.

6505172 is a deficient number, since it is larger than the sum of its proper divisors (4986028).

6505172 is a wasteful number, since it uses less digits than its factorization.

6505172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15310 (or 15308 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 6505172 is about 2550.5238677574. The cubic root of 6505172 is about 186.6750435583.

The spelling of 6505172 in words is "six million, five hundred five thousand, one hundred seventy-two".