5591880 has 144 divisors (see below), whose sum is σ = 21207420. Its totient is φ = 1274112.

The previous prime is 5591863. The next prime is 5591881. The reversal of 5591880 is 881955.

It can be written as a sum of positive squares in 2 ways, for example, as 4955076 + 636804 = 2226^2 + 798^2 .

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

It is not an unprimeable number, because it can be changed into a prime (5591881) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17482 + ... + 17798.

Almost surely, 2^5591880 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 5591880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10603710).

5591880 is an abundant number, since it is smaller than the sum of its proper divisors (15615540).

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

5591880 is a wasteful number, since it uses less digits than its factorization.

5591880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348 (or 334 counting only the distinct ones).

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

The square root of 5591880 is about 2364.7156277236. The cubic root of 5591880 is about 177.4949281101.

The spelling of 5591880 in words is "five million, five hundred ninety-one thousand, eight hundred eighty".