257275323 has 12 divisors (see below), whose sum is σ = 373289280. Its totient is φ = 170746416.

The previous prime is 257275283. The next prime is 257275363. The reversal of 257275323 is 323572752.

It is an interprime number because it is at equal distance from previous prime (257275283) and next prime (257275363).

It is not a de Polignac number, because 257275323 - 2⁹ = 257274811 is a prime.

It is a super-4 number, since 4×257275323⁴ (a number of 35 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (257275363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62088 + ... + 66101.

It is an arithmetic number, because the mean of its divisors is an integer number (31107440).

Almost surely, 2^257275323 is an apocalyptic number.

257275323 is a deficient number, since it is larger than the sum of its proper divisors (116013957).

257275323 is a wasteful number, since it uses less digits than its factorization.

257275323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128418 (or 128415 counting only the distinct ones).

The product of its digits is 88200, while the sum is 36.

The square root of 257275323 is about 16039.8043317242. The cubic root of 257275323 is about 636.0130752622.

The spelling of 257275323 in words is "two hundred fifty-seven million, two hundred seventy-five thousand, three hundred twenty-three".