2125556 has 12 divisors (see below), whose sum is σ = 3730020. Its totient is φ = 1059840.

The previous prime is 2125553. The next prime is 2125559. The reversal of 2125556 is 6555212.

2125556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2125553) and next prime (2125559).

It can be written as a sum of positive squares in 2 ways, for example, as 1612900 + 512656 = 1270^2 + 716^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2150 + ... + 2978.

It is an arithmetic number, because the mean of its divisors is an integer number (310835).

2^2125556 is an apocalyptic number.

It is an amenable number.

2125556 is a deficient number, since it is larger than the sum of its proper divisors (1604464).

2125556 is a wasteful number, since it uses less digits than its factorization.

2125556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474 (or 1472 counting only the distinct ones).

The product of its digits is 3000, while the sum is 26.

The square root of 2125556 is about 1457.9286676652. The cubic root of 2125556 is about 128.5752913595.

The spelling of 2125556 in words is "two million, one hundred twenty-five thousand, five hundred fifty-six".