5581641 has 16 divisors (see below), whose sum is σ = 8072064. Its totient is φ = 3410304.

The previous prime is 5581637. The next prime is 5581651. The reversal of 5581641 is 1461855.

It is not a de Polignac number, because 5581641 - 2² = 5581637 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5581599 and 5581608.

It is not an unprimeable number, because it can be changed into a prime (5581651) 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 15 ways as a sum of consecutive naturals, for example, 6085 + ... + 6941.

It is an arithmetic number, because the mean of its divisors is an integer number (504504).

Almost surely, 2^5581641 is an apocalyptic number.

It is an amenable number.

5581641 is a deficient number, since it is larger than the sum of its proper divisors (2490423).

5581641 is a wasteful number, since it uses less digits than its factorization.

5581641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040.

The product of its digits is 4800, while the sum is 30.

The square root of 5581641 is about 2362.5496820173. The cubic root of 5581641 is about 177.3865280174.

The spelling of 5581641 in words is "five million, five hundred eighty-one thousand, six hundred forty-one".