2331225 has 36 divisors (see below), whose sum is σ = 4502316. Its totient is φ = 1146240.

The previous prime is 2331191. The next prime is 2331253. The reversal of 2331225 is 5221332.

It can be written as a sum of positive squares in 6 ways, for example, as 266256 + 2064969 = 516^2 + 1437^2 .

It is not a de Polignac number, because 2331225 - 2⁷ = 2331097 is a prime.

It is a super-2 number, since 2×2331225² = 10869220001250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2331198 and 2331207.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2527 + ... + 3323.

2^2331225 is an apocalyptic number.

2331225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2331225 is a deficient number, since it is larger than the sum of its proper divisors (2171091).

2331225 is a wasteful number, since it uses less digits than its factorization.

2331225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826 (or 818 counting only the distinct ones).

The product of its digits is 360, while the sum is 18.

The square root of 2331225 is about 1526.8349616118. The cubic root of 2331225 is about 132.5952797539.

Adding to 2331225 its reverse (5221332), we get a palindrome (7552557).

It can be divided in two parts, 2331 and 225, that added together give a triangular number (2556 = T₇₁).

The spelling of 2331225 in words is "two million, three hundred thirty-one thousand, two hundred twenty-five".