2125555 has 16 divisors (see below), whose sum is σ = 2682720. Its totient is φ = 1614592.

The previous prime is 2125553. The next prime is 2125559. The reversal of 2125555 is 5555212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2125555 - 2¹ = 2125553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2125553) 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, 15447 + ... + 15583.

It is an arithmetic number, because the mean of its divisors is an integer number (167670).

2^2125555 is an apocalyptic number.

2125555 is a deficient number, since it is larger than the sum of its proper divisors (557165).

2125555 is a wasteful number, since it uses less digits than its factorization.

2125555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278.

The product of its digits is 2500, while the sum is 25.

The square root of 2125555 is about 1457.9283247128. The cubic root of 2125555 is about 128.5752711961.

The spelling of 2125555 in words is "two million, one hundred twenty-five thousand, five hundred fifty-five".