6656250 has 56 divisors (see below), whose sum is σ = 16874784. Its totient is φ = 1750000.

The previous prime is 6656239. The next prime is 6656257. The reversal of 6656250 is 526566.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6656257) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 93715 + ... + 93785.

Almost surely, 2^6656250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6656250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8437392).

6656250 is an abundant number, since it is smaller than the sum of its proper divisors (10218534).

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

6656250 is an frugal number, since it uses more digits than its factorization.

6656250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 6656250 is about 2579.9709300688. The cubic root of 6656250 is about 188.1091300910.

The spelling of 6656250 in words is "six million, six hundred fifty-six thousand, two hundred fifty".