2111825 has 12 divisors (see below), whose sum is σ = 2773260. Its totient is φ = 1589760.

The previous prime is 2111819. The next prime is 2111839. The reversal of 2111825 is 5281112.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 49729 + 2062096 = 223^2 + 1436^2 .

It is not a de Polignac number, because 2111825 - 2¹⁸ = 1849681 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2111797 and 2111806.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2060 + ... + 2909.

It is an arithmetic number, because the mean of its divisors is an integer number (231105).

2^2111825 is an apocalyptic number.

2111825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2111825 is a deficient number, since it is larger than the sum of its proper divisors (661435).

2111825 is a wasteful number, since it uses less digits than its factorization.

2111825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4996 (or 4991 counting only the distinct ones).

The product of its digits is 160, while the sum is 20.

The square root of 2111825 is about 1453.2119597636. The cubic root of 2111825 is about 128.2978294245.

Adding to 2111825 its reverse (5281112), we get a palindrome (7392937).

The spelling of 2111825 in words is "two million, one hundred eleven thousand, eight hundred twenty-five".