6625000 has 56 divisors (see below), whose sum is σ = 15820110. Its totient is φ = 2600000.

The previous prime is 6624973. The next prime is 6625001. The reversal of 6625000 is 5266.

It can be written as a sum of positive squares in 7 ways, for example, as 2775556 + 3849444 = 1666^2 + 1962^2 .

It is not an unprimeable number, because it can be changed into a prime (6625001) by changing a digit.

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 13 ways as a sum of consecutive naturals, for example, 124974 + ... + 125026.

Almost surely, 2^6625000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6625000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7910055).

6625000 is an abundant number, since it is smaller than the sum of its proper divisors (9195110).

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

6625000 is an frugal number, since it uses more digits than its factorization.

6625000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 6625000 is about 2573.9075352468. The cubic root of 6625000 is about 187.8142877111.

The spelling of 6625000 in words is "six million, six hundred twenty-five thousand".