257202271 has 2 divisors, whose sum is σ = 257202272. Its totient is φ = 257202270.

The previous prime is 257202241. The next prime is 257202301. The reversal of 257202271 is 172202752.

It is a balanced prime because it is at equal distance from previous prime (257202241) and next prime (257202301).

It is a cyclic number.

It is not a de Polignac number, because 257202271 - 2²⁵ = 223647839 is a prime.

It is a super-3 number, since 3×257202271³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (257202241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128601135 + 128601136.

It is an arithmetic number, because the mean of its divisors is an integer number (128601136).

Almost surely, 2^257202271 is an apocalyptic number.

257202271 is a deficient number, since it is larger than the sum of its proper divisors (1).

257202271 is an equidigital number, since it uses as much as digits as its factorization.

257202271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 257202271 is about 16037.5269602268. The cubic root of 257202271 is about 635.9528720204.

The spelling of 257202271 in words is "two hundred fifty-seven million, two hundred two thousand, two hundred seventy-one".