5591000 has 32 divisors (see below), whose sum is σ = 13085280. Its totient is φ = 2236000.

The previous prime is 5590987. The next prime is 5591009. The reversal of 5591000 is 1955.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5591009) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1796 + ... + 3795.

It is an arithmetic number, because the mean of its divisors is an integer number (408915).

Almost surely, 2^5591000 is an apocalyptic number.

5591000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5591000 is an abundant number, since it is smaller than the sum of its proper divisors (7494280).

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

5591000 is a wasteful number, since it uses less digits than its factorization.

5591000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5612 (or 5598 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 5591000 is about 2364.5295515176. The cubic root of 5591000 is about 177.4856167675.

Adding to 5591000 its reverse (1955), we get a palindrome (5592955).

The spelling of 5591000 in words is "five million, five hundred ninety-one thousand".