5521780 has 48 divisors (see below), whose sum is σ = 13325760. Its totient is φ = 1900800.

The previous prime is 5521729. The next prime is 5521783. The reversal of 5521780 is 871255.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5521783) 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, 3520 + ... + 4840.

It is an arithmetic number, because the mean of its divisors is an integer number (277620).

Almost surely, 2^5521780 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 5521780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6662880).

5521780 is an abundant number, since it is smaller than the sum of its proper divisors (7803980).

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

5521780 is a wasteful number, since it uses less digits than its factorization.

5521780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360 (or 1358 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 5521780 is about 2349.8468035172. The cubic root of 5521780 is about 176.7501128673.

It can be divided in two parts, 552 and 1780, that added together give a palindrome (2332).

The spelling of 5521780 in words is "five million, five hundred twenty-one thousand, seven hundred eighty".