5561240 has 32 divisors (see below), whose sum is σ = 12821760. Its totient is φ = 2169600.

The previous prime is 5561221. The next prime is 5561263. The reversal of 5561240 is 421655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56 + ... + 3335.

It is an arithmetic number, because the mean of its divisors is an integer number (400680).

Almost surely, 2^5561240 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 5561240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6410880).

5561240 is an abundant number, since it is smaller than the sum of its proper divisors (7260520).

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

5561240 is a wasteful number, since it uses less digits than its factorization.

5561240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3443 (or 3439 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 5561240 is about 2358.2281484199. The cubic root of 5561240 is about 177.1701471756.

Adding to 5561240 its reverse (421655), we get a palindrome (5982895).

The spelling of 5561240 in words is "five million, five hundred sixty-one thousand, two hundred forty".