5656500 has 96 divisors (see below), whose sum is σ = 18345600. Its totient is φ = 1504800.

The previous prime is 5656493. The next prime is 5656549. The reversal of 5656500 is 56565.

5656500 is a `hidden beast` number, since 5 + 6 + 5 + 650 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13291 + ... + 13709.

It is an arithmetic number, because the mean of its divisors is an integer number (191100).

Almost surely, 2^5656500 is an apocalyptic number.

5656500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5656500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9172800).

5656500 is an abundant number, since it is smaller than the sum of its proper divisors (12689100).

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

5656500 is a wasteful number, since it uses less digits than its factorization.

5656500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 5656500 is about 2378.3397570574. The cubic root of 5656500 is about 178.1760241638.

Multiplying 5656500 by its reverse (56565), we get a square (319959922500 = 565650²).

5656500 divided by its reverse (56565) gives a square (100 = 10²).

The spelling of 5656500 in words is "five million, six hundred fifty-six thousand, five hundred".