5561408 has 28 divisors (see below), whose sum is σ = 11148060. Its totient is φ = 2752512.

The previous prime is 5561401. The next prime is 5561419. The reversal of 5561408 is 8041655.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 861184 + 4700224 = 928^2 + 2168^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (5561401) 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, 6848 + ... + 7616.

It is an arithmetic number, because the mean of its divisors is an integer number (398145).

Almost surely, 2^5561408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5561408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5574030).

5561408 is an abundant number, since it is smaller than the sum of its proper divisors (5586652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5561408 is a wasteful number, since it uses less digits than its factorization.

5561408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894 (or 884 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 5561408 is about 2358.2637681142. The cubic root of 5561408 is about 177.1719312073.

The spelling of 5561408 in words is "five million, five hundred sixty-one thousand, four hundred eight".