2012556 has 96 divisors (see below), whose sum is σ = 6146560. Its totient is φ = 497664.

The previous prime is 2012533. The next prime is 2012597. The reversal of 2012556 is 6552102.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 20700 + ... + 20796.

2^2012556 is an apocalyptic number.

2012556 is a gapful number since it is divisible by the number (26) 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 2012556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3073280).

2012556 is an abundant number, since it is smaller than the sum of its proper divisors (4134004).

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

2012556 is a wasteful number, since it uses less digits than its factorization.

2012556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 141 counting only the distinct ones).

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

The square root of 2012556 is about 1418.6458331804. The cubic root of 2012556 is about 126.2552146328.

Adding to 2012556 its reverse (6552102), we get a palindrome (8564658).

The spelling of 2012556 in words is "two million, twelve thousand, five hundred fifty-six".