2125755 has 24 divisors (see below), whose sum is σ = 3730272. Its totient is φ = 1119744.

The previous prime is 2125751. The next prime is 2125757. The reversal of 2125755 is 5575212.

It is a happy number.

It is not a de Polignac number, because 2125755 - 2² = 2125751 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2125751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4122 + ... + 4608.

It is an arithmetic number, because the mean of its divisors is an integer number (155428).

2^2125755 is an apocalyptic number.

2125755 is a deficient number, since it is larger than the sum of its proper divisors (1604517).

2125755 is a wasteful number, since it uses less digits than its factorization.

2125755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595 (or 592 counting only the distinct ones).

The product of its digits is 3500, while the sum is 27.

The square root of 2125755 is about 1457.9969135770. The cubic root of 2125755 is about 128.5793037504.

It can be divided in two parts, 21257 and 55, that added together give a palindrome (21312).

The spelling of 2125755 in words is "two million, one hundred twenty-five thousand, seven hundred fifty-five".