5565780 has 96 divisors (see below), whose sum is σ = 18910080. Its totient is φ = 1347840.

The previous prime is 5565773. The next prime is 5565809. The reversal of 5565780 is 875655.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5472 + ... + 6408.

It is an arithmetic number, because the mean of its divisors is an integer number (196980).

Almost surely, 2^5565780 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 5565780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9455040).

5565780 is an abundant number, since it is smaller than the sum of its proper divisors (13344300).

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

5565780 is a wasteful number, since it uses less digits than its factorization.

5565780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966 (or 958 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The square root of 5565780 is about 2359.1905391468. The cubic root of 5565780 is about 177.2183458798.

It can be divided in two parts, 556 and 5780, that added together give a palindrome (6336).

The spelling of 5565780 in words is "five million, five hundred sixty-five thousand, seven hundred eighty".