5440561 has 16 divisors (see below), whose sum is σ = 6652800. Its totient is φ = 4343040.

The previous prime is 5440543. The next prime is 5440571. The reversal of 5440561 is 1650445.

It is a cyclic number.

It is not a de Polignac number, because 5440561 - 2⁹ = 5440049 is a prime.

5440561 is a modest number, since divided by 561 gives 544 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5440511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15415 + ... + 15763.

It is an arithmetic number, because the mean of its divisors is an integer number (415800).

Almost surely, 2^5440561 is an apocalyptic number.

It is an amenable number.

5440561 is a deficient number, since it is larger than the sum of its proper divisors (1212239).

5440561 is a wasteful number, since it uses less digits than its factorization.

5440561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 5440561 is about 2332.5010182206. The cubic root of 5440561 is about 175.8792323193.

The spelling of 5440561 in words is "five million, four hundred forty thousand, five hundred sixty-one".