257359 has 4 divisors (see below), whose sum is σ = 261640. Its totient is φ = 253080.

The previous prime is 257353. The next prime is 257371. The reversal of 257359 is 953752.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 257359 - 2³ = 257351 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 257359.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2049 + ... + 2170.

It is an arithmetic number, because the mean of its divisors is an integer number (65410).

2²⁵⁷³⁵⁹ is an apocalyptic number.

257359 is a deficient number, since it is larger than the sum of its proper divisors (4281).

257359 is an equidigital number, since it uses as much as digits as its factorization.

257359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4280.

The product of its digits is 9450, while the sum is 31.

The square root of 257359 is about 507.3056278024. The cubic root of 257359 is about 63.6082020723.

It can be divided in two parts, 257 and 359, that added together give a palindrome (616).

The spelling of 257359 in words is "two hundred fifty-seven thousand, three hundred fifty-nine".