2155325 has 12 divisors (see below), whose sum is σ = 2711508. Its totient is φ = 1699200.

The previous prime is 2155319. The next prime is 2155327. The reversal of 2155325 is 5235512.

2155325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 41209 + 2114116 = 203^2 + 1454^2 .

It is not a de Polignac number, because 2155325 - 2¹⁸ = 1893181 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2155325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155327) 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 11 ways as a sum of consecutive naturals, for example, 1235 + ... + 2415.

It is an arithmetic number, because the mean of its divisors is an integer number (225959).

2^2155325 is an apocalyptic number.

2155325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2155325 is a deficient number, since it is larger than the sum of its proper divisors (556183).

2155325 is a wasteful number, since it uses less digits than its factorization.

2155325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264 (or 1259 counting only the distinct ones).

The product of its digits is 1500, while the sum is 23.

The square root of 2155325 is about 1468.1025168564. The cubic root of 2155325 is about 129.1727549448.

The spelling of 2155325 in words is "two million, one hundred fifty-five thousand, three hundred twenty-five".