245225 has 12 divisors (see below), whose sum is σ = 322524. Its totient is φ = 184320.

The previous prime is 245209. The next prime is 245251. The reversal of 245225 is 522542.

It can be written as a sum of positive squares in 6 ways, for example, as 29929 + 215296 = 173^2 + 464^2 .

It is not a de Polignac number, because 245225 - 2⁴ = 245209 is a prime.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 245197 and 245206.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 137 + ... + 713.

It is an arithmetic number, because the mean of its divisors is an integer number (26877).

2²⁴⁵²²⁵ is an apocalyptic number.

245225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

245225 is a deficient number, since it is larger than the sum of its proper divisors (77299).

245225 is a wasteful number, since it uses less digits than its factorization.

245225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604 (or 599 counting only the distinct ones).

The product of its digits is 800, while the sum is 20.

The square root of 245225 is about 495.2019789944. The cubic root of 245225 is about 62.5923966717.

Adding to 245225 its reverse (522542), we get a palindrome (767767).

The spelling of 245225 in words is "two hundred forty-five thousand, two hundred twenty-five".