11203425 has 72 divisors (see below), whose sum is σ = 22197240. Its totient is φ = 5376000.

The previous prime is 11203421. The next prime is 11203427. The reversal of 11203425 is 52430211.

It can be written as a sum of positive squares in 12 ways, for example, as 74529 + 11128896 = 273^2 + 3336^2 .

It is not a de Polignac number, because 11203425 - 2² = 11203421 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11203398 and 11203407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11203421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 110875 + ... + 110975.

It is an arithmetic number, because the mean of its divisors is an integer number (308295).

Almost surely, 2^11203425 is an apocalyptic number.

11203425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11203425 is a deficient number, since it is larger than the sum of its proper divisors (10993815).

11203425 is a wasteful number, since it uses less digits than its factorization.

11203425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 11203425 is about 3347.1517742702. The cubic root of 11203425 is about 223.7605926968.

Adding to 11203425 its reverse (52430211), we get a palindrome (63633636).

It can be divided in two parts, 11203 and 425, that added together give a triangular number (11628 = T₁₅₂).

The spelling of 11203425 in words is "eleven million, two hundred three thousand, four hundred twenty-five".