5559645 has 32 divisors (see below), whose sum is σ = 10950912. Its totient is φ = 2345472.

The previous prime is 5559643. The next prime is 5559649. The reversal of 5559645 is 5469555.

It is not a de Polignac number, because 5559645 - 2¹ = 5559643 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

5559645 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5559643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 672 + ... + 3401.

It is an arithmetic number, because the mean of its divisors is an integer number (342216).

Almost surely, 2^5559645 is an apocalyptic number.

It is an amenable number.

5559645 is a deficient number, since it is larger than the sum of its proper divisors (5391267).

5559645 is a wasteful number, since it uses less digits than its factorization.

5559645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4101.

The product of its digits is 135000, while the sum is 39.

The square root of 5559645 is about 2357.8899465412. The cubic root of 5559645 is about 177.1532077038.

The spelling of 5559645 in words is "five million, five hundred fifty-nine thousand, six hundred forty-five".