5665000 has 80 divisors (see below), whose sum is σ = 14620320. Its totient is φ = 2040000.

The previous prime is 5664991. The next prime is 5665013. The reversal of 5665000 is 5665.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 54949 + ... + 55051.

It is an arithmetic number, because the mean of its divisors is an integer number (182754).

Almost surely, 2^5665000 is an apocalyptic number.

5665000 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 5665000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7310160).

5665000 is an abundant number, since it is smaller than the sum of its proper divisors (8955320).

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

5665000 is a wasteful number, since it uses less digits than its factorization.

5665000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 5665000 is about 2380.1260470824. The cubic root of 5665000 is about 178.2652276306.

5665000 divided by its reverse (5665) gives a cube (1000 = 10³).

It can be divided in two parts, 56 and 65000, that added together give a palindrome (65056).

The spelling of 5665000 in words is "five million, six hundred sixty-five thousand".