5591857 has 4 divisors (see below), whose sum is σ = 5662720. Its totient is φ = 5520996.

The previous prime is 5591837. The next prime is 5591863. The reversal of 5591857 is 7581955.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7581955 = 5 ⋅1516391.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5591857 is a prime.

It is an Ulam number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (5591837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35313 + ... + 35470.

It is an arithmetic number, because the mean of its divisors is an integer number (1415680).

Almost surely, 2^5591857 is an apocalyptic number.

It is an amenable number.

5591857 is a deficient number, since it is larger than the sum of its proper divisors (70863).

5591857 is an equidigital number, since it uses as much as digits as its factorization.

5591857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70862.

The product of its digits is 63000, while the sum is 40.

The square root of 5591857 is about 2364.7107645545. The cubic root of 5591857 is about 177.4946847579.

The spelling of 5591857 in words is "five million, five hundred ninety-one thousand, eight hundred fifty-seven".