5591659 has 4 divisors (see below), whose sum is σ = 5697216. Its totient is φ = 5486104.

The previous prime is 5591653. The next prime is 5591671. The reversal of 5591659 is 9561955.

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 5591659 - 2¹¹ = 5589611 is a prime.

It is a Duffinian number.

5591659 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5591653) 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, 52699 + ... + 52804.

It is an arithmetic number, because the mean of its divisors is an integer number (1424304).

Almost surely, 2^5591659 is an apocalyptic number.

5591659 is a deficient number, since it is larger than the sum of its proper divisors (105557).

5591659 is a wasteful number, since it uses less digits than its factorization.

5591659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105556.

The product of its digits is 60750, while the sum is 40.

The square root of 5591659 is about 2364.6688985987. The cubic root of 5591659 is about 177.4925897852.

The spelling of 5591659 in words is "five million, five hundred ninety-one thousand, six hundred fifty-nine".