224625257 has 2 divisors, whose sum is σ = 224625258. Its totient is φ = 224625256.

The previous prime is 224625229. The next prime is 224625259. The reversal of 224625257 is 752526422.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218330176 + 6295081 = 14776^2 + 2509^2 .

It is a cyclic number.

It is not a de Polignac number, because 224625257 - 2²² = 220430953 is a prime.

Together with 224625259, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (224625259) by changing a digit.

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 as a sum of consecutive naturals, namely, 112312628 + 112312629.

It is an arithmetic number, because the mean of its divisors is an integer number (112312629).

Almost surely, 2^224625257 is an apocalyptic number.

It is an amenable number.

224625257 is a deficient number, since it is larger than the sum of its proper divisors (1).

224625257 is an equidigital number, since it uses as much as digits as its factorization.

224625257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67200, while the sum is 35.

The square root of 224625257 is about 14987.5033611339. The cubic root of 224625257 is about 607.8823433820.

The spelling of 224625257 in words is "two hundred twenty-four million, six hundred twenty-five thousand, two hundred fifty-seven".