255575417 has 2 divisors, whose sum is σ = 255575418. Its totient is φ = 255575416.

The previous prime is 255575407. The next prime is 255575423. The reversal of 255575417 is 714575552.

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., 169104016 + 86471401 = 13004^2 + 9299^2 .

It is a cyclic number.

It is not a de Polignac number, because 255575417 - 2²² = 251381113 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (255575407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127787708 + 127787709.

It is an arithmetic number, because the mean of its divisors is an integer number (127787709).

Almost surely, 2^255575417 is an apocalyptic number.

It is an amenable number.

255575417 is a deficient number, since it is larger than the sum of its proper divisors (1).

255575417 is an equidigital number, since it uses as much as digits as its factorization.

255575417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 245000, while the sum is 41.

The square root of 255575417 is about 15986.7262752572. The cubic root of 255575417 is about 634.6091934689.

The spelling of 255575417 in words is "two hundred fifty-five million, five hundred seventy-five thousand, four hundred seventeen".