2511225 has 18 divisors (see below), whose sum is σ = 4498286. Its totient is φ = 1339200.

The previous prime is 2511169. The next prime is 2511241. The reversal of 2511225 is 5221152.

2511225 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 3 ways, for example, as 11664 + 2499561 = 108^2 + 1581^2 .

It is not a de Polignac number, because 2511225 - 2⁶ = 2511161 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

2511225 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2511198 and 2511207.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 5356 + ... + 5805.

2^2511225 is an apocalyptic number.

2511225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2511225 is a deficient number, since it is larger than the sum of its proper divisors (1987061).

2511225 is a wasteful number, since it uses less digits than its factorization.

2511225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11177 (or 11169 counting only the distinct ones).

The product of its digits is 200, while the sum is 18.

The square root of 2511225 is about 1584.6845111883. The cubic root of 2511225 is about 135.9237064879.

Adding to 2511225 its reverse (5221152), we get a palindrome (7732377).

The spelling of 2511225 in words is "two million, five hundred eleven thousand, two hundred twenty-five".