2163525 has 48 divisors (see below), whose sum is σ = 4416384. Its totient is φ = 910080.

The previous prime is 2163509. The next prime is 2163527. The reversal of 2163525 is 5253612.

It is not a de Polignac number, because 2163525 - 2⁴ = 2163509 is a prime.

It is a Curzon number.

2163525 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2163495 and 2163504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6667 + ... + 6983.

It is an arithmetic number, because the mean of its divisors is an integer number (92008).

2^2163525 is an apocalyptic number.

2163525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2163525 is an abundant number, since it is smaller than the sum of its proper divisors (2252859).

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

2163525 is a wasteful number, since it uses less digits than its factorization.

2163525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 345 counting only the distinct ones).

The product of its digits is 1800, while the sum is 24.

The square root of 2163525 is about 1470.8925861530. The cubic root of 2163525 is about 129.3363615391.

It can be divided in two parts, 216 and 3525, that added together give a triangular number (3741 = T₈₆).

The spelling of 2163525 in words is "two million, one hundred sixty-three thousand, five hundred twenty-five".