10503225 has 18 divisors (see below), whose sum is σ = 18812846. Its totient is φ = 5601600.

The previous prime is 10503221. The next prime is 10503277. The reversal of 10503225 is 52230501.

It is a happy number.

10503225 is digitally balanced in base 3, 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 3549456 + 6953769 = 1884^2 + 2637^2 .

It is not a de Polignac number, because 10503225 - 2² = 10503221 is a prime.

It is a super-2 number, since 2×10503225² = 220635470801250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 10503198 and 10503207.

It is not an unprimeable number, because it can be changed into a prime (10503221) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 23116 + ... + 23565.

Almost surely, 2^10503225 is an apocalyptic number.

10503225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10503225 is a deficient number, since it is larger than the sum of its proper divisors (8309621).

10503225 is a wasteful number, since it uses less digits than its factorization.

10503225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46697 (or 46689 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 10503225 is about 3240.8679393027. The cubic root of 10503225 is about 218.9983736665.

Adding to 10503225 its reverse (52230501), we get a palindrome (62733726).

The spelling of 10503225 in words is "ten million, five hundred three thousand, two hundred twenty-five".