5591586 has 128 divisors (see below), whose sum is σ = 16128000. Its totient is φ = 1270080.

The previous prime is 5591569. The next prime is 5591587. The reversal of 5591586 is 6851955.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a nialpdrome in base 16.

It is a zygodrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5591587) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 294285 + ... + 294303.

It is an arithmetic number, because the mean of its divisors is an integer number (126000).

Almost surely, 2^5591586 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5591586, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8064000).

5591586 is an abundant number, since it is smaller than the sum of its proper divisors (10536414).

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

5591586 is a wasteful number, since it uses less digits than its factorization.

5591586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69 (or 55 counting only the distinct ones).

The product of its digits is 54000, while the sum is 39.

The square root of 5591586 is about 2364.6534629835. The cubic root of 5591586 is about 177.4918173838.

It can be divided in two parts, 559 and 1586, that added together give a triangular number (2145 = T₆₅).

The spelling of 5591586 in words is "five million, five hundred ninety-one thousand, five hundred eighty-six".