67244225 has 12 divisors (see below), whose sum is σ = 83593980. Its totient is φ = 53659200.

The previous prime is 67244179. The next prime is 67244279. The reversal of 67244225 is 52244276.

It can be written as a sum of positive squares in 6 ways, for example, as 39037504 + 28206721 = 6248^2 + 5311^2 .

It is not a de Polignac number, because 67244225 - 2¹⁰ = 67243201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67244191 and 67244200.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7331 + ... + 13719.

It is an arithmetic number, because the mean of its divisors is an integer number (6966165).

Almost surely, 2^67244225 is an apocalyptic number.

It is an amenable number.

67244225 is a deficient number, since it is larger than the sum of its proper divisors (16349755).

67244225 is a wasteful number, since it uses less digits than its factorization.

67244225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6820 (or 6815 counting only the distinct ones).

The product of its digits is 26880, while the sum is 32.

The square root of 67244225 is about 8200.2576179045. The cubic root of 67244225 is about 406.6477099318.

It can be divided in two parts, 6724 and 4225, that multiplied together give a square (28408900 = 5330²).

The spelling of 67244225 in words is "sixty-seven million, two hundred forty-four thousand, two hundred twenty-five".