257083 has 4 divisors (see below), whose sum is σ = 265408. Its totient is φ = 248760.

The previous prime is 257077. The next prime is 257093. The reversal of 257083 is 380752.

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 257083 - 2¹³ = 248891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4116 + ... + 4177.

It is an arithmetic number, because the mean of its divisors is an integer number (66352).

2²⁵⁷⁰⁸³ is an apocalyptic number.

257083 is a deficient number, since it is larger than the sum of its proper divisors (8325).

257083 is an equidigital number, since it uses as much as digits as its factorization.

257083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8324.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 257083 is about 507.0335294633. The cubic root of 257083 is about 63.5854554508.

The spelling of 257083 in words is "two hundred fifty-seven thousand, eighty-three".