257483 has 4 divisors (see below), whose sum is σ = 264480. Its totient is φ = 250488.

The previous prime is 257473. The next prime is 257489. The reversal of 257483 is 384752.

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 257483 - 2¹² = 253387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257489) 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, 3443 + ... + 3516.

It is an arithmetic number, because the mean of its divisors is an integer number (66120).

2²⁵⁷⁴⁸³ is an apocalyptic number.

257483 is a deficient number, since it is larger than the sum of its proper divisors (6997).

257483 is an equidigital number, since it uses as much as digits as its factorization.

257483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6996.

The product of its digits is 6720, while the sum is 29.

The square root of 257483 is about 507.4278273804. The cubic root of 257483 is about 63.6184162746.

The spelling of 257483 in words is "two hundred fifty-seven thousand, four hundred eighty-three".