275251217 has 2 divisors, whose sum is σ = 275251218. Its totient is φ = 275251216.

The previous prime is 275251183. The next prime is 275251231. The reversal of 275251217 is 712152572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200618896 + 74632321 = 14164^2 + 8639^2 .

It is a cyclic number.

It is not a de Polignac number, because 275251217 - 2¹⁸ = 274989073 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (275251297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137625608 + 137625609.

It is an arithmetic number, because the mean of its divisors is an integer number (137625609).

Almost surely, 2^275251217 is an apocalyptic number.

It is an amenable number.

275251217 is a deficient number, since it is larger than the sum of its proper divisors (1).

275251217 is an equidigital number, since it uses as much as digits as its factorization.

275251217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9800, while the sum is 32.

The square root of 275251217 is about 16590.6967002595. The cubic root of 275251217 is about 650.4936817534.

The spelling of 275251217 in words is "two hundred seventy-five million, two hundred fifty-one thousand, two hundred seventeen".