6649125 has 64 divisors (see below), whose sum is σ = 13478400. Its totient is φ = 2841600.

The previous prime is 6649117. The next prime is 6649127. The reversal of 6649125 is 5219466.

It is not a de Polignac number, because 6649125 - 2³ = 6649117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6649127) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 44551 + ... + 44699.

It is an arithmetic number, because the mean of its divisors is an integer number (210600).

Almost surely, 2^6649125 is an apocalyptic number.

It is an amenable number.

6649125 is an abundant number, since it is smaller than the sum of its proper divisors (6829275).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6649125 is a wasteful number, since it uses less digits than its factorization.

6649125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 181 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 6649125 is about 2578.5897308413. The cubic root of 6649125 is about 188.0419873777.

The spelling of 6649125 in words is "six million, six hundred forty-nine thousand, one hundred twenty-five".