5591808 has 72 divisors (see below), whose sum is σ = 16556400. Its totient is φ = 1861632.

The previous prime is 5591801. The next prime is 5591813. The reversal of 5591808 is 8081955.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (5591801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6508 + ... + 7316.

It is an arithmetic number, because the mean of its divisors is an integer number (229950).

Almost surely, 2^5591808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5591808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8278200).

5591808 is an abundant number, since it is smaller than the sum of its proper divisors (10964592).

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

5591808 is an equidigital number, since it uses as much as digits as its factorization.

5591808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834 (or 814 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The square root of 5591808 is about 2364.7004038567. The cubic root of 5591808 is about 177.4941663096.

The spelling of 5591808 in words is "five million, five hundred ninety-one thousand, eight hundred eight".