67307225 has 6 divisors (see below), whose sum is σ = 83460990. Its totient is φ = 53845760.

The previous prime is 67307221. The next prime is 67307237. The reversal of 67307225 is 52270376.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 18139081 + 49168144 = 4259^2 + 7012^2 .

It is not a de Polignac number, because 67307225 - 2² = 67307221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67307191 and 67307200.

It is not an unprimeable number, because it can be changed into a prime (67307221) 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, 1346120 + ... + 1346169.

It is an arithmetic number, because the mean of its divisors is an integer number (13910165).

Almost surely, 2^67307225 is an apocalyptic number.

It is an amenable number.

67307225 is a deficient number, since it is larger than the sum of its proper divisors (16153765).

67307225 is a wasteful number, since it uses less digits than its factorization.

67307225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2692299 (or 2692294 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 67307225 is about 8204.0980613350. The cubic root of 67307225 is about 406.7746641264.

The spelling of 67307225 in words is "sixty-seven million, three hundred seven thousand, two hundred twenty-five".