5445561 has 16 divisors (see below), whose sum is σ = 8091648. Its totient is φ = 3229200.

The previous prime is 5445541. The next prime is 5445577. The reversal of 5445561 is 1655445.

5445561 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5445561 - 2⁵ = 5445529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5445541) 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 15 ways as a sum of consecutive naturals, for example, 205 + ... + 3306.

It is an arithmetic number, because the mean of its divisors is an integer number (505728).

Almost surely, 2^5445561 is an apocalyptic number.

It is an amenable number.

5445561 is a deficient number, since it is larger than the sum of its proper divisors (2646087).

5445561 is a wasteful number, since it uses less digits than its factorization.

5445561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3572.

The product of its digits is 12000, while the sum is 30.

The square root of 5445561 is about 2333.5725829723. The cubic root of 5445561 is about 175.9330948348.

Subtracting from 5445561 its product of digits (12000), we obtain a square (5433561 = 2331²).

It can be divided in two parts, 5445 and 561, that added together give a palindrome (6006).

The spelling of 5445561 in words is "five million, four hundred forty-five thousand, five hundred sixty-one".