2215560 has 64 divisors (see below), whose sum is σ = 6840000. Its totient is φ = 573696.

The previous prime is 2215547. The next prime is 2215561. The reversal of 2215560 is 655122.

2215560 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2215560² = 9817412227200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2215561) 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, 4191 + ... + 4689.

It is an arithmetic number, because the mean of its divisors is an integer number (106875).

2^2215560 is an apocalyptic number.

2215560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2215560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3420000).

2215560 is an abundant number, since it is smaller than the sum of its proper divisors (4624440).

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

2215560 is a wasteful number, since it uses less digits than its factorization.

2215560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550 (or 546 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 2215560 is about 1488.4757304034. The cubic root of 2215560 is about 130.3650489088.

It can be divided in two parts, 2215 and 560, that added together give a triangular number (2775 = T₇₄).

The spelling of 2215560 in words is "two million, two hundred fifteen thousand, five hundred sixty".