2160556 has 6 divisors (see below), whose sum is σ = 3780980. Its totient is φ = 1080276.

The previous prime is 2160553. The next prime is 2160563. The reversal of 2160556 is 6550612.

It is a self number, because there is not a number n which added to its sum of digits gives 2160556.

It is not an unprimeable number, because it can be changed into a prime (2160553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270066 + ... + 270073.

2^2160556 is an apocalyptic number.

It is an amenable number.

2160556 is a deficient number, since it is larger than the sum of its proper divisors (1620424).

2160556 is a wasteful number, since it uses less digits than its factorization.

2160556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540143 (or 540141 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 2160556 is about 1469.8829885402. The cubic root of 2160556 is about 129.2771717993.

The spelling of 2160556 in words is "two million, one hundred sixty thousand, five hundred fifty-six".