5591171 has 4 divisors (see below), whose sum is σ = 5784000. Its totient is φ = 5398344.

The previous prime is 5591137. The next prime is 5591197. The reversal of 5591171 is 1711955.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5591171 - 2¹⁴ = 5574787 is a prime.

It is a super-2 number, since 2×5591171² = 62522386302482, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 192799 = 5591171 / (5 + 5 + 9 + 1 + 1 + 7 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5591101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96371 + ... + 96428.

It is an arithmetic number, because the mean of its divisors is an integer number (1446000).

Almost surely, 2^5591171 is an apocalyptic number.

5591171 is a deficient number, since it is larger than the sum of its proper divisors (192829).

5591171 is a wasteful number, since it uses less digits than its factorization.

5591171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192828.

The product of its digits is 1575, while the sum is 29.

The square root of 5591171 is about 2364.5657106539. The cubic root of 5591171 is about 177.4874262071.

The spelling of 5591171 in words is "five million, five hundred ninety-one thousand, one hundred seventy-one".