5591571 has 4 divisors (see below), whose sum is σ = 7455432. Its totient is φ = 3727712.

The previous prime is 5591569. The next prime is 5591587. The reversal of 5591571 is 1751955.

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 5591571 - 2¹ = 5591569 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (5591471) 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, 931926 + ... + 931931.

It is an arithmetic number, because the mean of its divisors is an integer number (1863858).

Almost surely, 2^5591571 is an apocalyptic number.

5591571 is a deficient number, since it is larger than the sum of its proper divisors (1863861).

5591571 is a wasteful number, since it uses less digits than its factorization.

5591571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863860.

The product of its digits is 7875, while the sum is 33.

The square root of 5591571 is about 2364.6502912693. The cubic root of 5591571 is about 177.4916586704.

The spelling of 5591571 in words is "five million, five hundred ninety-one thousand, five hundred seventy-one".