257850323 has 2 divisors, whose sum is σ = 257850324. Its totient is φ = 257850322.

The previous prime is 257850287. The next prime is 257850331. The reversal of 257850323 is 323058752.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-257850323 is a prime.

It is not a weakly prime, because it can be changed into another prime (257858323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128925161 + 128925162.

It is an arithmetic number, because the mean of its divisors is an integer number (128925162).

Almost surely, 2^257850323 is an apocalyptic number.

257850323 is a deficient number, since it is larger than the sum of its proper divisors (1).

257850323 is an equidigital number, since it uses as much as digits as its factorization.

257850323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 257850323 is about 16057.7184867589. The cubic root of 257850323 is about 636.4865439242.

The spelling of 257850323 in words is "two hundred fifty-seven million, eight hundred fifty thousand, three hundred twenty-three".