10247225 has 6 divisors (see below), whose sum is σ = 12706590. Its totient is φ = 8197760.

The previous prime is 10247221. The next prime is 10247231. The reversal of 10247225 is 52274201.

10247225 = 332² + 333² + ... + 406².

It is a happy number.

10247225 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 3429904 + 6817321 = 1852^2 + 2611^2 .

It is not a de Polignac number, because 10247225 - 2² = 10247221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10247225.

It is not an unprimeable number, because it can be changed into a prime (10247221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 204920 + ... + 204969.

It is an arithmetic number, because the mean of its divisors is an integer number (2117765).

Almost surely, 2^10247225 is an apocalyptic number.

It is an amenable number.

10247225 is a deficient number, since it is larger than the sum of its proper divisors (2459365).

10247225 is an equidigital number, since it uses as much as digits as its factorization.

10247225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409899 (or 409894 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 10247225 is about 3201.1287071906. The cubic root of 10247225 is about 217.2044693709.

It can be divided in two parts, 1024 and 7225, that multiplied together give a square (7398400 = 2720²).

The spelling of 10247225 in words is "ten million, two hundred forty-seven thousand, two hundred twenty-five".