667225241 has 2 divisors, whose sum is σ = 667225242. Its totient is φ = 667225240.

The previous prime is 667225201. The next prime is 667225253. The reversal of 667225241 is 142522766.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 646939225 + 20286016 = 25435^2 + 4504^2 .

It is a cyclic number.

It is not a de Polignac number, because 667225241 - 2²² = 663030937 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (667225201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333612620 + 333612621.

It is an arithmetic number, because the mean of its divisors is an integer number (333612621).

Almost surely, 2^667225241 is an apocalyptic number.

It is an amenable number.

667225241 is a deficient number, since it is larger than the sum of its proper divisors (1).

667225241 is an equidigital number, since it uses as much as digits as its factorization.

667225241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 35.

The square root of 667225241 is about 25830.7034553843. The cubic root of 667225241 is about 873.8243764404.

It can be divided in two parts, 6672 and 25241, that added together give a palindrome (31913).

The spelling of 667225241 in words is "six hundred sixty-seven million, two hundred twenty-five thousand, two hundred forty-one".