225847277 has 2 divisors, whose sum is σ = 225847278. Its totient is φ = 225847276.

The previous prime is 225847253. The next prime is 225847283. The reversal of 225847277 is 772748522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181144681 + 44702596 = 13459^2 + 6686^2 .

It is a cyclic number.

It is not a de Polignac number, because 225847277 - 2⁶ = 225847213 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225847207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112923638 + 112923639.

It is an arithmetic number, because the mean of its divisors is an integer number (112923639).

Almost surely, 2^225847277 is an apocalyptic number.

It is an amenable number.

225847277 is a deficient number, since it is larger than the sum of its proper divisors (1).

225847277 is an equidigital number, since it uses as much as digits as its factorization.

225847277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 439040, while the sum is 44.

The square root of 225847277 is about 15028.2160285245. The cubic root of 225847277 is about 608.9826965639.

The spelling of 225847277 in words is "two hundred twenty-five million, eight hundred forty-seven thousand, two hundred seventy-seven".