5591566 has 8 divisors (see below), whose sum is σ = 8397504. Its totient is φ = 2792400.

The previous prime is 5591557. The next prime is 5591569. The reversal of 5591566 is 6651955.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×5591566² = 62531220664712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5591569) 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, 1891 + ... + 3841.

It is an arithmetic number, because the mean of its divisors is an integer number (1049688).

Almost surely, 2^5591566 is an apocalyptic number.

5591566 is a deficient number, since it is larger than the sum of its proper divisors (2805938).

5591566 is a wasteful number, since it uses less digits than its factorization.

5591566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3386.

The product of its digits is 40500, while the sum is 37.

The square root of 5591566 is about 2364.6492340303. The cubic root of 5591566 is about 177.4916057658.

The spelling of 5591566 in words is "five million, five hundred ninety-one thousand, five hundred sixty-six".