257502341 has 2 divisors, whose sum is σ = 257502342. Its totient is φ = 257502340.

The previous prime is 257502293. The next prime is 257502353. The reversal of 257502341 is 143205752.

It is a happy number.

257502341 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132733441 + 124768900 = 11521^2 + 11170^2 .

It is a cyclic number.

It is not a de Polignac number, because 257502341 - 2¹⁴ = 257485957 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 (257502391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128751170 + 128751171.

It is an arithmetic number, because the mean of its divisors is an integer number (128751171).

Almost surely, 2^257502341 is an apocalyptic number.

It is an amenable number.

257502341 is a deficient number, since it is larger than the sum of its proper divisors (1).

257502341 is an equidigital number, since it uses as much as digits as its factorization.

257502341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 257502341 is about 16046.8794785778. The cubic root of 257502341 is about 636.2000914736.

The spelling of 257502341 in words is "two hundred fifty-seven million, five hundred two thousand, three hundred forty-one".